Last fall Magnet SF, San Francisco's community-based gay men's health organization, sponsored "Open Up", a safe sex poster contest.
Unfortunately, although the winners were announced last month, none of the posters are online. So you'll have to look at the not-safe-for-work Call For Entries poster here instead.
(I originally posted that image directly to this blog, but I made it a link instead just to keep this site from becoming too dirty. Should I bother? Let me know in the comments. Thanks!)
(Update, I think no one cares, so I've put the image back on. Let me know if it bugs you.)