Design and Purchase Real Banners

I believe it would be really cool if people could design and purchase Minecraft Banners. There could be a design page on minecraftshop.com that looks and functions like the one in the game. Then, once they are happy with the result, they can choose a resolution(shield or full scale), material(poster paper, cotton, minky fabric), and a size(post card, poster, blanket) with certain materials and sizes not being compatible. The price would then be determined based on the selected options. Once the payment is confirmed, the banner would be printed and shipped to the happy customer. It would be a great way to let players bring a piece of their Minecraft world home with them. It would probably be a bit expensive to produce and purchase, but I believe there is a market for this concept. Plus, you could mass produce simple designs and sell them for a lower price for people who just want a banner and don't need it to be a specific design.