How To Make A Shoe

1. Draw your idea. Sketch what you want the shoe to look like and come up with a design. This can be done in a computer program, with pencil and paper, or by actually cutting material to size. It's entirely up to you.
2. Using scrap materials, make a prototype or pattern for your design idea. Scraps are generally cheap or free, and you won't waste money on the nice expensive stuff with the inevitable multiple revisions.
3. Create or purchase a last. A "Last" is a model of a foot to try your ideas on. You could use your own foot... if you aren't afraid of accidentally poking a needle into yourself when sewing the prototype.
4. Twiddle with the materials and pattern until you have a good plan.
5. Make a mock up of the shoe and try it on.
6. Make adjustments as necessary.
7. Make your own shoes from the pattern!
8. Contact a shoe factory for mass production, or just enjoy your own original shoes!