cube toy beads
thingiverse
You insert a stretchy material along the center of the rope, causing it to maintain its form regardless of how you manipulate it.
Download Model from thingiverse
With this file you will be able to print cube toy beads 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 cube toy beads.