Party idea for your pre-teen to teenage son

If you live near woods (or know someone who will let you use their woods) I'd like to suggest a paintball party. We have a few guns and our local hobby shop rents paint equipment.We are going to set up a capture the flag paintball game for my son's 12th birthday. I'm even looking forward to it!

P.S. Party went great. Only one out of the group ended up with a bloody welt and that was dad.:)