MCM Chopped Fingers
thingiverse
Here's a little MCM Chopped Fingers gadget that you can stick on your car dashboard when you're in the mood to chop someone, or at your desk when you need something fun to do while you're bored at work. I built this thing using a 4.95mm diameter spring and it has just the right amount of springiness.
Download Model from thingiverse
With this file you will be able to print MCM Chopped Fingers 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 MCM Chopped Fingers.