sew on rock and roll patches website with a wide variety?

Answer 1

Try these places - these are mostly iron on, but it would probably be recommended to sew them down if the garment is to be repeatedly worn:
http://www.mysticrock.net/Catalog_c43774.html

http://www.backstage-fashion.com/Patches.htm

http://www.rockmerch.com/cgi-bin/RKMstore.cgi?user_action=category&category=Patches

Answer 2

ebay has a lot. Look up embroidered patches.

And the links below.