Un-knock-over-able nail polish holder

Mum needed something to stop her knocking over her nail polish when applying it. I can't knock this over no matter how hard I try.

Most of her nail polish comes in square bottles, but I also made an (untested) round hole version too.

Just add 1mm or so to the actual size of your bottle for ```holesize``` and knock a few mm off for ```baseheight``` so the top of the bottle sticks over the top of the base (see photo).

Update: added a vase mode version that creates both square and round ho