The AOL CD Boomerang. Got lots of CDs lying around? Well why not make use of them with this fun and lethal little toy? Hey, the plans are free, you want more?
Throw it high and with little forward power, but big spin. Just a few too many ergs of power would make this rang fly more like a 9 than a circle, but it’s effective range was only about 4 meters, so that meant about four steps to make the grab.