Making a house key into one of the character designs?

At Lowes, Home Depot and Walmart they have an option for you to turn your key into a character, a lot are disney ones. All 3 of these stores could copy my key, but said the designs couldnt be made on them. My key is a "77" I think the man said. Is there ANY store out there that can turn this particular house key into one of those designs?