ninja stars
thingiverse
There are two ninja stars designed for throwing, and also two that can be attached to a surface, creating an illusion of being hurled and subsequently sticking in place.
Download Model from thingiverse
With this file you will be able to print ninja stars 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 ninja stars.