About this 3D model
Repair a Puzzleball Piece you've trodden on. Print out and glue piece together with this or similar. License: "Here's the source files, I don't give a flying [monkey] what you do with this...... Takes me 10minutes to design, I'm a professional Engineer, Copy, remix, mis-attribute all you like......" Sadly no option for the above in Thingverse.