So, my boyfriend of over a year is turning 16. i want to through him a surprise birthday. any ideas?! help me?

I have to okay it by his mom, but i want to have all his friends and football buddies and all of that. He loves hunting, so i plan on having it be a camouflage theme. I'm going to surprise him when they all get there. I need help with some game ideas and stuff like that. Any ideas would be great!