These days we all love computers, but when they first arrived on the scene they had a few... glitches. So, instead of people punching their computer, they could take their stresses out on the technological equivalent of a stress ball: a Smack-a-Mac.
Inspired by the launch of the first Mac, the cuddly little toy meant that early adopters could vent their frustrations on something rather less valuable than the computer itself. Fortunately for the poor Smack-a-Mac, these days computers run well. Most of the time. [Computerphile]