if you sell on ebay you can use the bidding function to use limited production rates to your advantage. if people see your products on social media (pinterest, twitter, instagram, etc.) and they want them, they will gladly pay for them competitively sometimes paying twice the original price.
think of it like chumming fish, if you dump out an entire drum of chum the fish will have more food than they need and slowly swim around eating their fill, but if you let out a small amount of chum at a time they will be much more vicious, fighting to the death for the smallest chunks of food.