Smooth Thread
thingiverse
This is a thread that hangs loose under gravity, it's entertaining to manipulate and I've got the Solidworks file if you'd like to personalize it. Personalizing it can be quite enjoyable and it's also great to mess around with. Both parts shouldn't require any extra assistance.
Download Model from thingiverse
With this file you will be able to print Smooth Thread 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 Smooth Thread.