A buddy of mine sent me a crazy book on erotic watches. These things are just about kookie as can be. You’ve got a really nice pocket watch or or minute repeater and you flip the bugger over and you’ve got nekkid folk wiggling away. I found this site that sells some nice little samples of the work and I know that Blancpain is working on rekindling the art.
These things were pretty much the Deep Throat of their day and every sly raconteur carried one.
Product Page [EroticWatches]