Isaac Cordal sculpts faces in wire mesh colanders and then uses light to project the portraits on the ground.
Polyscene--Folded paper, and paper and wire, sculptures. There are more in the artist's Flickr stream.
Lepus Animatus, Canis Latrans Animatus. More pictures of cartoon skeleton sculptures at Hyungkoo Lee's site. The drawings. An essay about the pieces at Lee's site. Previous cartoon skeleton thread with a busted link.(working link)