Kid's Fire Tablet Headrest Mount

I edited Carbonia1981's headrest mount to work with my son's kids edition Fire Tablet (8") and loved it, the headrest size was exactly the same for my Toyota Prius. But within the first 10 seconds of using it, my toddler kicked his feet and broke it. I had printed it in all PLA. I knew I needed something different. So I created this mount in two pieces, the smaller piece that attaches to the headrest should be printed out of TPU, for durability.

The fit is very tight, but the pieces fit together without much work at all, so I think a tight fit is preferred.