I made acrylic prints of my feet years ago. I mail the prints to cobblers or other special footwear suppliers, so they have exact models to work on, or try the shoes on for size before sending them to me.

Even if you have normal feet, if you always want to buy the correct size, making copies of your feet you can send someone is a life-saver!

If you're curious how I made them, here's a howto video:

The cobbler who made these shoes is local to me. I brought them my prints, but they had their own workflow. So in the end, they didn't use them.