Furby

Furby was a popular electronic robotic toy resembling a hamster/owl-like creature which went through a period of being a "must-have" toy following its launch in the holiday season of 1998, with continual sales until 2000. Furbies sold 1.8 million units in 1998, 14 million units in 1999, and altogether in its three years of original production, Furbies sold over 40 million units.