My mom told me and my FI about a catholic tradition. She said she's not sure its done anymore but its what her and my dad did when they married 40 years ago. I've never been to a catholic wedding so I am still learning. She said my father gave her 13 coins( gold dimes) and it represents the groom professing he will always provide for his wife. The exchange of these coins took place during the ceremony. She mentioned what this is called in spanish but I don't remember. Has anyone heard of this? I think its such a sweet sentiment.