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.
Out house chicken coup~ THIS is so cute! Love the toilet seat nest box doors! Great idea for when you need to block them off while they are too young to use the nests or to discourage nest box sleepers.