You can buy the pig skin from a butcher, any kind will do, even if they still have some fat or meat attached. The way we make them is you buy pork lard from the store and you heat it up, add a lot of salt, or to taste. Fry the pork skin until they look like the ones in the potato chip isle, pretty much just eyeball it. Also, you can add water to the fat, together with some onions and garlic too. Then, add the skins and ears, snout, what ever you got, throw some pork meat in there too, and boil them till they're soft and fully cooked. Add a can of coke to caramelize it, and strain it and it's done . Both ways are good, just take some practice to get them how you like them. Oh, and stir them a lot so they don't stick to the pan. We make them in a large cazo on a burner outside. Cook on high flame