Three videos to teach how to make a mini paper boomerang.
Very simple, but it works, although I have to warn that it is difficult to find a way to throw it back. Do not expect results like those of the wooden boomerangs or other commercials, but as a random game in a meeting or for children to play it is very good.
I achieved a range of about 30 - 40 cm. So you can try it to see if you can overcome it ;-)
I leave you several more videos, although with any of them it would be enough, since the activity is very simple to execute, although not so much to get the paper boomerang return to you.