Buying a 3D printer is all fun and games until you realize you’re running out of fun things to print. Now and then, however, we see something cool, like this Dremel Devil. It’s a plastic fan inside a cylinder, and it’s meant to be launched off a Dremel rotary tool. If done right, you’ll see this little toy soar up to 200 feet up in the air.
It’ll require a little bit of trial and error to figure out just how much pressure to use when inserting the Dremel Devil in the adapter, but a small learning curve shouldn’t keep anyone from having fun with this for at least a day or two. The file is free on the Thingiverse.