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.
BACK YARD IDEAS: Awesome idea! Step Paint different colored GLOW IN THE DARK paints. Step Wipe off shortly after. Step Let dry! The paint will dry inside the rings of the stump. Definitely saving this one for later.