Mystery solved

[offcntr]

So a month ago, I asked if anyone could guess what this is. Got several guesses, some more serious than others (a sex toy? For aliens? I am shocked, I say, shocked), one actually pretty close.

Behold, the self-filling water dish for the kitties! Based on a design for Chicken Waterers I remember from my days on the farm. I'd planned to use a quart mason jar, but got the shrinkage slightly wrong. Fortunately, an empty mayonnaise jar is just the right bit larger, and fits perfectly. (Also is unbreakable.) Holds about a two-day supply of water, and the cats no longer lurk in the bathroom doorway waiting for me to refill their bowl. (Or claw at my shins on the toilet when I forget.)

And it makes the cutest bubbly noises when it refills.