Check out some of my related designs A little desk stand for small Baoding balls (or meditation balls, stress balls, etc.). This one is based on a set of 51mm (2") diameter balls, but should work on anything up to that (and probably a fair bit larger). Should print fine with no supports, brims, etc. I printed mine in PETG at 0.48 layers....I tend toward quick and 'pretty enough' :)