Rock'em Sock'em Robots -- $15
by Jason Weisberger from on (#3P8E0)
In another career, I used my set of Rock'em Sock'em Robots to settle meaningless employee disputes. They worked successfully at several startups, until I met some online media sales people. They didn't know to stop when their block was knocked off.
Mattel's Rock'em Sock'em Robots via Amazon