Here are some neat ideas using terra cotta clay pots.
Show – Potted Surprises – Episode DCRJ-613
http://www.diynetwork.com/diy/shows_dcrj/episode/0,2499,DIY_24656_50655,00.html
Idea – Clay Bird Bath, Painted Pots and Blooming Napkins, Flowerpot Dirt Dessert, Clay Pot Garden Bell