Log Bird Feeder - 23 DIY Birdfeeders That Will Fill Your Garden With Birds (my note: I haven't looked at all of these, but at least one is a terrible idea. The window birdfeeder -- birds could fly into the glass and hurt themselves.
Create a cute and easy DIY suet bird feeder by upcycling a coffee mug from the thrift store! Make your own suet by melting beef fat and mixing in seed, OR just melt down a suet cake from the store. A stick from the yard makes the perfect freebit perch.