The Encyclopedia of Immaturity by Klutz.

I have an aunt who always made an impression on me by her ability to be utterly silly, to make ridiculous jokes, and have fun at everyone’s (including her own) expense. Now that I have my own child, I was both delighted and horrified when she presented him with The Encyclopedia of Immaturity. Brought to you by the editors of the Klutz books, this is the reference books for every child. This book is chock full of pranks, jokes, tricks, and neat little illusions.

Need to learn how to pretend to bonk your head loudly on a table? Do the old “removing your thumb” trick?  This is the book for you! If you want to get in a lot of trouble, you can try the old “shaving cream in your napping dad’s hand” trick. Or how to explode a paper bag in a most disruptive fashion.

Upon receiving this book, my son was at first nonplussed. Little did he know the secrets buried within. rest assured, the “DO NOT ENTER LABORATORY” and “CAUTION NUCLEAR WASTE” signs are plastered on his bedroom door!  He’s still working on the subtle art of trickery (he is only six, after all) but it has never stopped him from continuing to trick me!

I can’t say I recommend you buy this for your child. But for your nephew, niece, neighbor’s kid, absolutely. Just be sure to look over your shoulder if you find yourself alone with the kid.