I found this cool children's chair, made from standard bookshelf brackets and wood by Rotterdam-based artist Helmut Smits. He doesn't know it, but Smits' latest sculpture is an eerie almost-portrait of me: it's a system for turning Diet Coke into water.
Childrens Chair, 2003, L: 46 cm W: 40 cm H: 69 cm [helmutsmits.nl]
The Real Thing, 2006 [helmutsmits.nl via makezine]
Need some rubber feet on that chair or the wooden floor will be ruined.
[good point (no pun intended) -ed.]
It would be kind of cool to put rubber balls on the bottom. All you would have to do is cut a slit in the ball and pop it on.