Did you know that this is not just a children's toy, but also a game? Try to hook a chain of monkeys until you stop or your chain falls apart. You score one point for every monkey in the chain at that point. First to 12 points wins! The U.S. federal trademark registration for BARREL OF MONKEYS by LAKESIDE INDUSTRIES, INC., W. HARTFORD, CT 06110 was filed on Wednesday, July 14, 1965. The USPTO trademark serial number was 72223317.