Smaller one in leather if I had to choose. Instead of coach, get your dad leather prada wallet or a fendi leather wallet. Coach quality is crap. And signature wallets are tacky for men.
You do your design then get a block made at an engravers. You can use gold ink or whatever colour you want. I would suggest linoprint ink.
I looked online and found a website that has the entire menu of the conglomerate, here is the address You sound like a very bright person for learning the menu beforehand. Good luck.