From www.ningyoushi.com:
Meet Barry the Beaver. He wants to be your best friend. "Bzzz." What's that Barry? "Bzzz." Is that right? "Bzzzz." Nyuk, Nyuk, Nyuk. Oh Barry, you're so funny! "Bzzzz". Why is Barry making a buzzing sound you ask? He's so happy to meet a new friend that he's jumping ecstatically on his tree stump.
Barry the Beaver, your vibrating vinyl friend, is designed by Jeremy Fish, in conjunction with Upper Playground, SuperFishal, and Ningyoushi. Turn the tree stump to activate the vibration. Features a cool bendy tail. Includes one AA battery. NOT SUITABLE FOR CHILDREN UNDER 18!
