Artist Wayne Peters created this wonderful papercraft Elder Thing and investigators set for "Call of Cthulhu".
He's also dreamed up some other amazing artwork that you can see at his website, Crow's Nest. Including one of the best depictions of the venerable Type-S scoutship from the Traveller RPG that I've ever seen. One of these days I'll have to dig out some of the sci-fi props from the good ship Anton Regiv.
Update: Bleh. Mr. Peters left a very nice comment apologizing for slagging ATMOM. Unfortunately, I clumsily deleted it instead of posting it because I'M AN IDIOT and clicked the wrong button.
Not that it matters too much, since we're not mind-numbed cultists around here. Well, not about things like that. If you start badmouthin' "The Cats of Ulthar", on the other hand, we's gonna have words.