Instincts by SmartyKat® Love Mates™ Feathery Cat Toys Set of 2 releases your cat’s inner instincts with feathers and multi-textured plush bodies, mimicking the feel of prey they would find in the wild. Containing HappyNip® catnip and silvervine, a natural extra-exciting blend to drive cats wild, SmartyKat® Love Mates™ will soon become your cat’s favorite “prey.” Toys with HappyNip®, our proprietary blend of catnip and silvervine, encourage cats to frolic, romp, and play.