I wanted to submit a finished custom idea for your approval, or not :) if it's a go, pm me and I'll put the order in! As someone in the service industry, there will definitely be a not-skimpy tip :)
https://docs.google.com/document/d/1YusqlsveWgMQ5k8HpFwF3ShdVgpLmSVgq9thvqdonN4/edit?usp=drivesdk