More to explore:
Heart Bird Feeder
Using pieces I found in my junk collection and a little E6000 glue, I created a bird feeder that any bird would be proud to stop at for a bite to eat!
tea cup bird feeder.
Natural Bird Feeders
How to Make a Flowerpot Bird-Feeder
Cattail Bird Feeders
DIY Flowerpot bird feeder ~ site also has how to make wine bottle birdfeeders