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The Greek Shop both will make letters out of fabric that you give them. I have quite a few sets of letters that were made out of fabric that I gave them. Or if you have any crafty sisters, buy the fabric and ask them to make the letters for you. As far as the big letters go, I saw some shirts and jackets with pretty big letters on them, I don't know how big they are, but they were definitely bigger than the standard 4" ones. Hope this helps.