Pakkun (also called crystal pakkun) are furry, puppet-like cases made to protect acrylic and crystal contact juggling balls. They are usually cute or comical in appearance, sporting eyes and a wide zipper 'mouth' for the ball to enter and exit. Some pakkun also have ears, noses, hats, and other build-on accessories.
Pakkun are made and sold by the Japanese juggling shop Asobiba Green. However, many contact jugglers have made their own.