Novelty juggling er... balls, in the shape of boobs. Realistic? We will let you decide. They are gel-filled which gives them the consistency of stress balls. Although they are designed to add a bit of amusement to a performance, the accompanying 48 page hardback book gives surprisingly detailed instructions: including the very basics of learning to juggle, moving on to different techniques & tricks, as well as incorporating clubs, food etc into the routines.