Marc Cash has more pairs of cleats than one might find in the Broncos locker room. He has troves of Nuggets game-worn shoes and Avalanche hockey sticks.

And it’s all on display in the basement of his Denver home.

Well, some of it is.

Cash, 38, has been collecting autographs since he was 6 and has been going full tilt with his collection since he was 22. He estimates he has 48,000 autographed items, so many that his garage and closets are stuffed with boxes full of memorabilia. So are many rooms in his house.

His basement, meanwhile, is a mini museum. He has on display there some of his 300 Broncos autographed cleats, some of his 75 Nuggets autographed game-worn basketball shoes and some of his 75 autographed Avalanche hockey sticks.

There are photos and posters all over the walls, autographed by sports and entertainment figures. On display are autographed jerseys and about 45 autographed full-size and 150 mini football helmets. He has binders full of photos autographed by Broncos players

“That’s my passion,’’ he said. “I just love to do it. … I’m very proud of what I’ve accomplished. It took a long time for me to get all these autographs. … And now I’m running out of room.”

Cash and his family ran Celebrity Limousine and Executive Transportation of Denver from 2010-21, a business Cash said was making about $200,000 a year and used about 30 limousines and SUVs. Cash drove some sports figures regularly, including former Broncos star outside linebacker Von Miller and wide receiver Demaryius Thomas, who died in 2021. Autographed items from them are on display.

Cash drove a number of top musical acts, including The Rolling Stones, Ozzy Osbourne, Jennifer Lopez, Snoop Dogg, Keith Urban, Robert Plant, Motley Crue, Gloria Estefan, Nicki Minaj, The Eagles, Shania Twain, Steven Van Zandt and Rascal Flatts. Autographed items from some of them can be seen at his home.

However, after coronavirus pandemic restrictions in 2020 and business declined significantly, the company went out of business. Cash now works for his father’s construction company, including helping frame homes being built.

When he’s not doing that, Cash regularly goes to team training facilities, stadiums, arenas, concert venues and hotels where celebrities are staying to get autographs. Of his 48,000 autographed items, he estimates he has gotten about 35,000 of them himself while having purchased the other 13,000.

“This is madness,’’ his wife, Tawnya Cash, said, mostly lighthearted. “It’s madness because this is what I have to deal with. It’s in every room, from the bottom to the top. He’s been dealing with celebrities since we had the business driving everyone. You know how people are starstruck when they see celebrities? But he’s always been just calm (asking for autographs).’’

The Broncos are Cash’s biggest passion. He estimates that of all his autographed items, about 15,000 are Broncos related, and he has gotten about 14,000 of them himself.

“I was born a Broncos fan, and I’m pretty much married to the Broncos,’’ he said. “Like they say, when you get married, till death do you part. That’s the way it is with me and the Broncos.”

With that in mind, Cash often can be seen outside Broncos Park following practices waiting for players to stop their vehicles to sign. Many do.

“(Cornerback Pat Surtain II) is one of the greatest and nicest signers ever,’’ Cash said. “(Guard) Quinn Meinerz is one of the nicest. (Outside linebacker) Jonathon Cooper, (wide receiver) Courtland Sutton and (defensive tackle) D.J. Jones are pretty nice. … I just tell them I’m a huge fan, and I would love to get their autograph.”

Cash often has the players autograph photos. He has a binder that includes about 55 photos Surtain has signed throughout the years.

“He’s out there all day, so I figure why not (stop and sign)?’’ said Surtain, the NFL Defensive Player of the Year in 2024.

Cash said some players don’t stop because they think he’s getting autographs to sell, but Cash said he never sells anything. Surtain called that “pretty cool.”

Meinerz also likes it that Cash is said to be a true fan and doesn’t sell items. Meinerz recently stopped his car and gave Cash a pair of cleats that he autographed.

“He’s always out there chilling,’’ Meinerz said. “Whenever my cleats are done, I just throw them away. He said, ‘If you got cleats, don’t throw them away. I’ll take them.’ I said, ‘All right.’”

Cash has a large frame in his basement that includes five autographed photos of Meinerz. In 2023, he saw Meinerz when he was leaving Broncos Park. The star guard stopped and posed for photos while holding the big frame.

Cash said he has gotten Broncos legendary quarterback John Elway to autograph about eight items over years, including mini helmets in Cash’s basement. He caught up with former Broncos star quarterback Peyton Manning once at the Four Seasons Hotel Denver and said he was a “class act” in giving him an autograph.

Tawnya Cash’s father, Thomas Ciddio, who is now deceased, was an accomplished artist. He once drew a picture of Tim Tebow pointing to the sky, and Cash said the former Broncos quarterback graciously signed it in 2020.

Cash said current Broncos quarterback Bo Nix hasn’t stopped yet at the practice facility to provide an autograph. But Cash has purchased several Nix autographed items for his collection that he has on display.

When it comes to the biggest sports star in Denver, Cash said Nuggets center Nikola Jokic used to stop his car outside Ball Arena and sign autographs after arriving in Denver in 2015. But he said that changed after Jokic became a big star, which has included him winning three Most Valuable Player awards since 2021.

“For the first three, four years with the Nuggets, he was cool,’’ said Cash, saying he has about 10 photos signed then by Jokic. “He used to stop his car and sign. Now he just waves to you (while driving by).’’

Cash said he got a bunch of autographed shoes from the Nuggets star who wore No. 15 before Jokic. But he had to hand over cash to forward Carmelo Anthony, who played for Denver from 2003-11.

“I would literally meet him after games outside (Ball Arena),’’ Cash said. “I would get in his minivan that he had all decked out and he had bags of shoes and he would sell them to me. … I probably got 10 one time and I gave him like $2,000. They’re all in boxes now in my garage.”

At least Anthony signed all the shoes.

Cash estimates he has gotten about 250 Nuggets autographs over the years. Players he said were good at signing have included Andre Miller, Chauncey Billups, Earl Boykins, Marcus Camby and Michael Porter Jr.

Cash got Jamal Murray to sign some photos at an event at a local sporting goods store shortly after the Nuggets won the NBA title in 2023. He has a large framed Murray autographed photo on display at his home.

Cash said he has gotten about 200 autographs from Avalanche players over the years. Those he said have been good at signing include Gabriel Landeskog, Cale Makar and Patrick Roy, especially when he was their coach from 2013-16. He has on display in his basement autographed goalie leg pads he once got from Philipp Grubauer and Semyon Varlamov.

Cash estimates he has gotten about 150 autographs from Rockies players. He singled out Larry Walker, Todd Helton and Charlie Blackmon as among those having been generous with their time.

Cash also has collected autographs from politicians. On display he has ones from President Donald Trump, President Barack Obama and former senator and 2012 presidential candidate Mitt Romney.

“I’ve had him sign four $100 bills,’’ Cash said of having encountered Trump twice over the years at the Four Seasons Hotel Denver. “One was during his first term and the other three were (in 2024 before his second term). He signs but he doesn’t say a whole lot to you.”

Cash got Obama to sign a baseball when he was president and was at the Ritz-Carlton Denver.

“I saw him coming out and I was like ‘Mr. Obama, do you mind signing?’’’ Cash said. “The Secret Service said no but Obama said, ‘Yeah, I’ll sign for you.”’

Cash has found it easier at times to interact with politicians and sports figures than with some in the entertainment world.

“I tried to pose with some of my clients and some of them would say no,’’ Cash said of his days as a limousine driver. “I tried to get a photo with Jennifer Lopez and she wouldn’t do it. … (Ciddio) had drawn a picture of Mick Jagger and I tried to get him to sign it. He kind of glanced at it but (his handlers) wouldn’t let him sign it. … The Eagles wouldn’t sign. They fought among themselves, so we had to get an SUV for each member of the band.”

But Cash said entertainers who have been gracious in posing for photos or signing autographs either when he was driving or meeting them elsewhere have included Snoop Dogg, Gloria Estefan, Steven Van Zandt, Keith Urban, Rascal Flatts, Katy Perry, Post Malone, Adam Sandler, Lionel Richie, Eminem, Drake, Pitbull, Ice Cube and Lil Wayne. He said Twain once passed on to him some concert tickets.

Tawnya Cash laughed when she talked about how persistent her husband was once in getting an autograph from Marilyn Manson.

“He tracked him down because he knew where they were staying and he was tailing his bus and they finally pulled over and they said, ‘What do you want?’’’ she said. “He said, “I just want Marilyn Manson to sign.’ They said, “As long as you go, he will.’”

Cash has tried to get a Taylor Swift autograph but so far that has been futile.

“I’ve never been able to get close to her,’’ he said. “Her security is way too crazy. They’ll push you out of the way.”

Still, Cash in an upstairs room that has exercise equipment also has three autographed Swift acoustic guitars he bought online for $2,000 apiece. In the same room are autographed photos of Elway and Kansas City quarterback Patrick Mahomes. He said Mahomes was gracious in signing after the Chiefs played in Denver a few years ago.

Cash’s bedroom is stuffed with memorabilia displayed on the walls. There is a stadium chair from old Mile High Stadium in the kitchen that has been autographed by a number of current and former Broncos players.

But the biggest displays are in the basement.

“It looks like a miniature Bill’s Sports Collectibles,’’ said Tommy Edilla, 55, of Denver, referring to the local store. “It’s pretty overwhelming.”

Edilla often joins Cash outside Broncos Park in their quest for autographs. On a recent day after practice, Surtain stopped his car to sign and also posed for a photo with the two.

“He’s a big superfan,’’ Surtain said of Cash. “I know he’s probably got some pretty good collectibles. It seems like he’s been doing it for a long time now.”

With Cash closing in on 50,000 autographs, he figures to add a lot more from Surtain to his collection.