Alchemy is Etsy's system for requesting custom items. A buyer describes the item they would like and the seller responds with the details of the item they can create. Read about how Alchemy works in our Alchemy Overview.
Any of the fabrics you see in the Fiber Hounds shop can be used for any collar type (Martingale, Walking, Tag or Buckle) in any size. If you have the perfect fabric in mind, but don't see it here, let me know! I will go on a hunt for you. You are also welcome to send me fabric to use for your collars.