Opa!

I wonder if there's a long-standing joke between Germans and Greeks: "Opa" means "grandfather" in the former, while it seems a standard celebratory exclamation in the latter. We take advantage of opportunities to use its dual meaning, not the least of which is Opa's birthday.

A little unwrapping music, a little hands-on help from an expert. Uh oh, better keep a close eye on your gifts or Will may snag one!
Opa! May all of your birthday wishes come true!