From Boing Boing founder Mark Frauenfelder:
Here’s a great self-working card trick to teach your kids. If they are old enough to spell, they will love performing it for their friends. I learned about the trick, which was invented by magician Jim Steinmeyer, on Greg Ross’s Futility Closet blog.
The trick is easy to perform, and works every time – even if you misspell some words!