Nascar fabric for blanket?

I would like to make a tie fleece blanket for my boyfriend for valentines day. I wanted to do one side his favorite nascar driver and the other side plain. My only problem is i have been to Joanne fabrics and walmart and none of them have any nascar fabrics.I dont know where else to look for it at and It HAS to be nascar fabric he eats sleeps and breaths racing as he is a racer himself so if anybody can tell me where else i can look or where they do sell nascar fabric i would greatly appreciate it!