CafePress - design and sell items
ImageKind - create your own artwork
Pokono - You design it, and they will make it, and you can sell it
Shapeways - create 3-D products
Spoonflower - design your own fabric, wallpaper or gift wrap
Spreadshirt - create your own shirt design
Tastebook - Create your own Cookbook
Zazzle - you create sell your items