Mini boomerangs?

Mini boomerangs work the same as the bigger ones. The only difference is in size and the way it is thrown/launched. Mini boomerangs don’t need to be thrown like the big ones do. They just need a flick. Here are two kinds mini boomerangs.

This can be made with some sort of paper/cardboard

This can be made with 1/4 of a post it note or a piece of paper thats 1″ by 1″