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.
Interview with Tobi from Past Lives about his glassware bird feeders and windchimes created using Eternal Tools Diamond Core Drills. I think these are fab and a great way to recycle and restore used crockery and glass ware.