A kinkier version of the original IOU game. This inexpensive but fun little game includes 42 cards with sexy -- and spicy -- favors listed on them. Hand a card to your special person (they’re not at all gender-specific) and have him or her pull open the tab to reveal what’s inside. If IOUs like ”Me, restrained, in a position of your choosing” or ”Blindfold and use your favorite toys” sound intriguing to you, this game might be a great way to add some tantalizing excitement to your relationship.