Via io9: On January 13, a photo of DeDe Lind (Playboy's Miss August 1967) that was smuggled aboard the Apollo 12 command module 'Yankee Clipper' will be auctioned by RR Auction. Bidding starts at $1000. See the source of auction links for a more detailed description. The winner of this auction will receive a signed photo from DeDE that features the inscription, "Pete [Conrad] and Al [Bean] left me with a great Dick [Gordon] in lunar orbit!"
If you remember, the Apollo 12 astro-nuts also had pinups in their mission checklists.