teacup bird feeder--I use it for water for the birds. It got very dirty with the birdseed and so I use it this way instead. Set it in a place in your garden where it will not be damaged by hail at some point.
They made this out of flower pots...but I have a water bath base that needs a saucer. This is a great idea for replenishing a saucer, since I'm pretty sure they will often sell a saucer separate from the pot at Walmart and stuff. Brilliant!