Rotor
thingiverse
You can customize the number of blades and the diameter of the rotor from the f3d file. Use a pencil as a handle and turn it quickly to make the rotor fly away.
Download Model from thingiverse
With this file you will be able to print Rotor with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Rotor.