GaryK of LumberJocks Woodworking Blogs built this birdcage, complete with bird, from a single piece of Southern Yellow Pine 2x4 piece of lumber!
Link - Thanks Adam Fuhrer!
Incidentally, LumberJocks has a lot of wonderful photos of people's woodworking projects. It also has a some neat stories, like this one by Dusty Jerzak, called This Old Crack House, about his trials and tribulations renovating an old house.