I have nothing Local for comic stores or sign stores or anything really......we dont even have grocery store in our town....sad I know, but anyways.......I contacted via email a Sign Store and they said they sell their 4' x 8' for $25 I thought that was high? So I am reading now their are different thicknesses? I might have to get back ahold of them to see........all you ladies are soooo clever! I went to Home Depo today and didn't find anything.....but maybe becasue I to did not know what I was looking for....lol