The Steve Johnson FX Facebook Page has recently uploaded a series of more photos of behind the scenes designs of the Superman costume for Tim Burton's cancelled Superman lives, as well as concept art of Superman and Doomsday. Also uploaded was an album of Iron Man designs and photos of a prosthetic hulk for a 1998 film version of Hulk.
I think the prosthetic Hulk would have been very cool to see on film and hopefully we'll get something like it in the upcoming television series.
For more photo's head to the Steve Johnson FX page: http://www.facebook.com/home.php?#!/stevejohnsonfx