D.G.
My son (who's 10 also !)loves gift cards. Something else you might think about is what my mom & brother did for my kids this year. They are giving them season's passes for 6 flags. That way they are using their gift all year long. You could do the combo pass for 6 flags & Hurricane Harbor or just 6 flags. They are on sale right now also. I'm also getting one so I can take the kids.