I have been seeing vintage maps all over the design blogosphere these days. Designsponge recently did a piece on DIY with maps. You can check it out here.
Here are some photos from their site and if you need some supplies for your crafting, I have some lots of school maps for sale on etsy that are inexpensive and can be cut up, framed or altered as you see fit. See them in my etsy shop
Also, keep an eye out for my new specialty shop Old School Maps. It will be up and open for business shortly.