I am looking for an app or theme that will let the customer build their own hat. We sell leather patch hats. We have 4 shapes and a lot of different hats to offer. I know there is a lot of leg work to be done. Something similar to this website. https://leathering.co/products/leather-patch-hats You select your hat, your patch shape, can upload your file and it puts a mock up for the customer to see. Is there anything out there.