I'm now saving up my race t-shirts to do something unusual....have a quilt made. Of course, I hope to stay in the good graces of my sister-in-law to actually have mine made for me, but if you don't know a seamstress there are people out there you can work with.
Campus Quilts: Sort of a cool idea. Got a bunch of old race t-shirts hanging around? Have this company make a quilt for you. Little pricey.
I'm going to save up for a 36-square Wide Full Bedspread T-Shirt quilt. I will have nineteen shirts after the Monster 5K9 this Saturday. In case you were wondering, it is a 5K9 as I'm doing it with my youngest dog.