I've opened a store with Woven Monkey! They are a UK-based supplier of print-on-demand fabric. You can upload your own designs or buy from independent designers like me. They have 20 different fabric options - from a range of different cottons to velvet and scuba stretch (lycra).
I didn't realise how many designs I actually had in my portfolio so it will take a while to upload them all, but head over to the store to see what's available.