We decided to go with a sports theme, because it's pretty general and we can put anything in the room along with sports items. I am having a very hard time finding a decent set, these are my two favorites, which do you like better?
1 ) http://www.bedbathandbeyond.com/product.asp?SKU=16355518
2) http://www.toysrus.com/product/index.jsp?productId=4237223&searchURL=false