Have you ever seen those movies? I grew up with Laurel and Hardy, I was recently looking up kid’s games for Sparks, and I ran across this Wikipedia article —

Earsy-kneesy-nosey is a game of coordination and dexterity, which is particularly played by Stan Laurel in the movie Fra Diavolo, to the great despair of Oliver Hardy.
It quickly became a fad shortly after this film was released.
This game consists in clapping the knees with both hands, and then alternatively grab the left ear with right hand while grab the nose with the left hand, clap again the knees, and then grab the right ear with left hand while grab the nose with the right hand. Then you proceed to do it increasingly faster.

The process seems extremely easy to acquire, but it requires in fact lots of time and training, since it requires constant shifting of coordination before left and right control areas of the brain. But once the right coordination has been acquired, it is possible to do it extremely fast, and it can be redone after years of hiatus.

Try this — SO much harder than you would expect! I feel like such a klutz when I try. But it’s hilarious!