Sportcrafters makes a mini roller trainer for rear wheel only:
http://www.sportcrafters.com/minirollers.htm

Redline (rebranded Minoura) has a rim drive trainer that does not touch the tire, thus no tire wear:
http://www.redlinebicycles.com/components/trainer
http://www.minourausa.com/japan/trai.../erda2024.html