Graphic tablet pen holder

A pen holder for graphic tablet pens, that I designed and printed some time ago. It works way better than I expected. (Luckily design, huh? :) ) And works way better than the standard put-your-pen-exacly-there-every-time-or-it-drops holders
You can even "throw" (more like roughly puting back) the pen in the holder and the holder catches it perfectly.