String Floater
thingiverse
I created this object from scratch using Openscad, inspired by https://www.thingiverse.com/thing:3970520. It is completely free of licensing restrictions, so feel free to use or abuse it as you see fit. UPDATE: I modified the file to create new positions for the holes, which has significantly improved the design.
Download Model from thingiverse
With this file you will be able to print String Floater 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 String Floater.