Quote Originally Posted by keng View Post
Yes, filling is a bit annoying so I'm going to drill out a wider hole for ease of filling. I've made a dozen 1/2 balls which seemed cool.
You don't fill them thru those little holes.
You fill the bottom tray (the one without holes) with water and then put the other tray on top it and the excess water comes thru those little holes.

BTW, I see a couple of entrepreneurs have some up for sale on eBay.