I needed a setup block holder that provided for extra spacing for larger hands.  I also wanted a snug, but not tight, fit so that each block could be easily accessed without having to fight the holder!  This was modeled using Aovky setup blocks (Amazon) which also comes with a 1-2-3 block but I opted not to include that in this holder since it can stand on its own.

Printed using 0.24mm draft mode, 2 wall, 15% infill.