Knife Cup (and other sharp ends)

While working on my various hobbies I would quickly pick up and toss my hobby knives into a pencil cup for convenience. Problem with the normal pencil cups is the wide, flat and hard bottom can bend, wear out, or even snap the fragile tip of hobby blades. "This Knife Cup" features and deep diamond cut pattern, and in between the diamonds they all gradually wedge together. That diamond cut & wedge being printed in TPU provides both a strong base, the ability to absorb the impact and protect the blade. The cup cones inwards at the top by a few slight degrees, not just to have a wider bottom for support, but this also allows the knives to be tossed in without the blade tip sticking into the wall. The blade will just ride along the wall into the diamond cut. I printed with a .6mm nozzle, 2 walls with 3 top & bottom layers (a little thicker on the top and bottom to handle the blade point running into it) and had Infill set to 15% honeycomb. (forgive the messy print, the green TPU filament I used is 9 years old and even after running it in the dryer it still strings and occasionally "pops".