I have a grandson who is to taken with trains, I want to make a train quilt. But not childish, trains such as diesl, steam trains, box cars. Does anyone know where I could purchase this kind of fabric. Our family worked for Long Island railroad and he has the bug. He wears his Great grandfathers conductors hat and watches these trains on computer all the time. AJ is 5., and I really would love to surprize him with a train quilt. Thank you.