Tony Stark certainly has no shortage of suits, both three piece and Iron Man suits. One he uses for guest appearances at charity auctions and being a playboy on the town, the other he uses when he needs to look business-like. I don't know if this MOC by John Toulouse has every single Iron Man minifigure that has ever been made, but it certainly looks like it (even the micro-fig!). It also has some fun surprises on the back side, very cool.
Iron Man fans should recognize this instantly, it's Tony Stark's lab in his Malibu mansion. This large interior MOC from kissyfur_ok is totally packed with detail everywhere you look. Going through the pictures will remind you of several scenes from the movies and you'll find excellent little easter eggs, just like a Marvel movie. Click through for more pics, it's worth it.
I didn't read a lot of comics as a kid, but when I did it was usually Iron Man. This sculpt by builder nobu_tary has a striking pose and hits all the right comic book notes. You can practically hear Tony Stark inside the suit saying "I am Iron Man!"