Chris Pratt's Autograph Deal Has Fans Seeing Red

Among the incredulous reactions on Instagram was one from a fan who wanted to see how far he could take Chris Pratt's deal: " I'm totally inclined to buy a used car for like 50 bucks and have it shipped to you so you can sign it. I wanna see the largest thing you will sign for $400." Another follower questioned the worth of an autograph from Starlord himself. "if it's something from actual film or tv then maybe, but no picture is worth $400 when he's still alive lol."

It's worth noting, however, that Pratt isn't the only celeb to sell their John Hancock. SWAU's website lists many other famous clients, including Harrison Ford, Natalie Portman, Ewan McGregor, and William Shatner. The stars do a bulk signing of photos, which the company then sends to major conventions like Comic-Con for resale. Some autographed items can fetch a tidy sum over time, particularly if the celeb has died, or if the item has more than one signature. For instance, a "Star Wars" photo featuring Mark Hamill and Carrie Fisher's autographs is being offered for $10,000 (via Collectors.com).

But not all Marvel superheroes are created equal. SWAU also offers signings by Chris Hemsworth for just $250, for instance. If you're an "Iron Man" fan, though, be prepared to dig deeper into your pockets. An item signed by Robert Downey, Jr. will set you back $700 — but all proceeds are going to charity.