old items made with ripstop nylon (Chatham, NY)

I am looking for: old tents (with holes?) raincoats, or anything made of ripstop nylon. You can tell determine the fabric is ripstop by the grid pattern woven into the fabric. We will use the material to make kites with an immigrant community in the Albany area and we will make you a kite too! Kites will be embellished with words of hope in the various languages of our community: Dari, Bangla, Turkish, Spanish, Hindi, and more! We will have a celebration flying kites day in September in Washington Park. Let me know if you would like more info about this. We are hoping to source this material as sustainably as possible. I can pick this up. Thanks! - Melissa