In the U.K. over Christmas, 300,000 electronic Test Tube Aliens flew off toy store shelves to encourage kids to be both active and interactive nurturers.

In Australia and New Zealand as well, orders could not keep up with demand. Since then, China's second-largest toy-making factory in 2006 has been kept busy as the rest of Europe, and much of Asia began jumping onto the bandwagon.

Promotion began in the U.S. just last week, which leaves the second-largest market in the world for manufactured children's toys not simply trailing but out in the cold: Japan.