Try a Dollar store in the gift wrap section. And yes from what I hear it is washable.
You will get an answer at this site. As for buying Mylar I have a friend that sells it also if you have a party supply store in your area they usually have it.
Thank you, I moved to Dominican Republic not too long ago and I am not familiar with embroidery stores(if there are)
Let me kow if you have problems finding mylar over there maybe I can find a way to help.
Thank you, I am not in the capital, every two week I go to do my shopping I am going to take this opportunity to find out. If I can not find it Could you tell me where to buy it via internet? Thank you