2009: Zhu Zhu Pets
IN 2009, the robotic hamsters seemed to be taking over the world -- kids' worlds anyway.
Zhu Zhu Pets were pretty hard to find.
Patches, Chunk, PipSqueak, Mr. Squiggles, and Num Nums are their names, and they coo, purr, explore their surroundings, and respond to various stimuli. You can even buy accessories for them. Thankfully, they also have a sleep mode.