Currently for sale via Heritage Auctions, this original art page from Marvel Comics' "Millie the Model" series features a guest appearance by famed artist Jack Kirby!
But the Kirby depicted (in pencils by Millie artist Stan Goldberg) doesn't look much like Kirby at all. Still, scripter Stan Lee manages to get a plug in for the Kirby-drawn monster title "Journey Into Mystery."
Why can't comics be this weird anymore?!