I'm sure I can't be the first one to mention this option, but when I searched the forums... I didn't see any posts about it. So let me give you an example: I sell my artwork on a site called pixels.com, and they have a "Limited Time Promotion" option that let's artists choose a specific piece of artwork, apply a custom price and promo time limit... then pixels creates a promotional page for the product with a unique URL. Now that may be a bit more than what I feel is needed here on shapeways. All we really need here are Unique Custom Discount codes for each Shop that have a 'percentage setting' that can be changed and saved, and maybe an 'Active/Non-Active' checkbox too. We know the discount system for shop owners is in place already, so I don't think it would be all that complicated to add it to the 'customer' checkout. If the Shop owners set discount code is active, it's applied, if it's not active... then no discount. Having this option will definitely help Shop Owners drive more customers to their shapeways stores, and most likely generate more sales as well. Just food for thought, but I'd really love to be able to run Limited Time Discount Sales, if not for individual products... then at least for the entire shop. Thanks!