Parameteric Linkable Tiles

NOTE: Customizer preview doesn't seem to be working right for this design. The generated files seem to be OK. But its kinda hard to choose your parameters when you can't see the preview.

Square tiles with hex holes and hollow bottom!
A thousand and one uses!
Use as a soap dish,
or a coaster for the coffee table,
or assemble a few together (set "linkable" to true) to make a larger mat

The hollow bottom allows small "stuff" (i.e. kitty litter, water, air) to fall through holes and accumu