I want to print a rese cover to slide over this to protect from fall damage. It's Pic related that'll hit the ground and it will crack the glass flash bulb in front from shock. Now I'm thinking tpu.. but I've also got foaming tpu, so I'm thinking like a gradient temp where there's still some solid, but also slightly foamed then a bit more foamed to help cushion impact. Or is infill better with solid tpu better for that?