21st Birthday Present

[Stormieweather]

Help! Need ideas...

My son turns 21 next month and I've been wracking my brains trying to think of a birthday present for him. I was going to get him a watch, engraved with his name/initials, but then he had to go and ask for a watch, a specific one, for Christmas.

I would like it to be something durable, a keepsake, useful, and that can be engraved/carved/customized with initials and event.

So far, I've come up with an engraved pen or a leather compartmentalized box with a silver nameplate on it. Oh, and a handy keychain breathalyzer, in the event he decides to take up drinking..

He's responsible, kind, enjoys gaming, traveling, and is fascinated by science and the military. He's health conscious and doesn't smoke, drink or do drugs. He is currently unemployed, but looking.

Any ideas?

Thanks in advance!

Stormie