Carved tires
This from Plenty of Colour:
"Adding to his career of turning everyday forgotten objects into pieces of art, Belgian artist Wim Delvoye created his latest series “Pneu” (French for tire). Using discarded tires, Wim hand carved incredibly intricate patterns using motifs from different periods of art including Art Deco patterns and Art Nouveau floral designs. The level of detail in the relief and the sheer craftsmanship required is stunning. Have you ever seen a tire turned into something so beautiful? Such inspiration for what can be done with the things we call trash. In addition to being an amazing piece of art, I can just see one of these pieces hanging from an old tree and creating an extraordinary swing…"
(spotted on inhabitat)