“Is there anyone that makes custom shoes? One of my feet is 2 sizes smaller than the other.” I hear this more often than you would think. Many people have different size feet with the left foot generally being the larger. You can deal with this by purchasing the larger size and putting an insert into the one that is slightly larger. If you have a full size difference it is still only 1/3″ difference in length and 1/8″ difference in width, so you may still be able to handle the larger size.
If your feet have a 1 1/2 or more size difference, you could still buy the larger size and supplement the smaller with insoles, but to insure your foot health, you really need to wear 2 different size shoes. What to do?
You might be able to find a fit with Diabetic shoes that have inlays that can be removed. Generally this is not a fashionable option.
Most people buy the shoe in 2 different sizes and discard the shoes they can’t wear. This is expensive and not a very good sustainable option unless you can find a person with the opposite sizing and share with them.
Enter Nordstrom‘s with a great policy. As long as you have a 1 1/2 or more size discrepancy, they will fit the 2 feet appropriately and only charge for one pair. This policy is for all shoes and available online, although online you need to buy 2 pairs, return the mismatched pair and get a refund. Apparently the original Mrs. Nordstrom had polio and needed two different sizes, so the company that began as a shoe store, extended the service to their customers in need. This is a great service, part of what has set Nordstrom apart in the retail industry.
Birkenstock is another shoe company that offers 2 size splitting policies.
You could also look into custom shoes. As digital last creation evolves this may become and increasingly more affordable option.