Setup a print profile to suit, and used scarf seams to ensure the seam isn't going to cause an issue with fitment.

I've printed mine using generic TPU, but should work with any brand TPU. 

The rollers on the Cricut Maker machine are notorious for wearing out. This is a quick cheap option to make your own to replace them! There is a guide on youtube of how to disassemble and reassemble the machine to fit these. 

This model is totally yours to play with! Print it, sell it, hack it, modify it - go wild! I make these things because I love creating stuff that people actually use, not to control what you do with it.