If it wasn't so close to Christmas I would suggest something like this:

http://www.thinkgeek.com/.../games/b9f4/?cpg=froogle

It's a giftcard maze.  My grandma always buys them for the boys when she gives them giftcards/checks to make it more interesting.  I've seen all types of mazes and boxes that won't open  (there's a secret to open it), etc.