The O’Rourke family of Tucson, Arizona, United States, found two baby rabbits in their backyard who were in need of care and nursed them back to health.

One of the lovely animal friends, whom they named Joe, could not move his back legs. To help Joe get around, the youngest member of the O’Rourke family, Liam,designed the All Terrain Bunny support system.
Joe soon started to enjoy the movement which his new wheels afforded.

Bravo, compassionate Liam, for your wonderful creation. All best wishes to you, Joe and fellow bunny, for many happy years ahead, delighting in this amazing life.
http://www.dailymail.co.uk/news/article-1380524/Move-Easter-Bunny-With-set-wheels-Joe-paraplegic-rabbit-
fastest-bunny-town.html
http://www.kgun9.com/story/14502760/easter-rolls-in-with-joe-the-bunny?redirected=true
http://blog.makezine.com/archive/2011/05/child-designs-wheelchair-for-bunny.html= pics