Fetish IOU Coupon Game A Deviantly Pleasurable Game for Lovers! Need some punishment? When was the last time you had a proper spanking? Do you like the feel of PVC and Leather? Do you miss being tied up? With the Fetish I.O.U game all of your hidden fetish pleasures will be fulfilled. Directions: Once, twice or as often as you would like, you and your lover each exchange a hidden Fetish I.O.U card! Indulge yourselves with forbidden desires as you open each card and follow the instructions inside. Ball and Chain Games. I.O.U is a registered trademark of Ball & Chain Novelties LLC.