Well, no one guessed the answer correctly, so we'll have to move along.
I will be posting a new image shortly.
Regarding this particular entry: Cindy Grimaldi, a notorious sports groupie, submitted this photo. It was taken during a "love session" she had had with Wilt Chamberlain back in the early seventies. Not having a condom with him, Mr. Chamberlain made a feeble attempt at using a shoebox as a substitute.
Mr. Chamberlain and Miss Grimaldi laughed at the resulting mishap, and Miss Grimaldi took a photo, which subsequently found its way into the public domain, and the name "Wilt the Stilt" was born.
Fascinating stuff, really.