How about a mall party. I had one for a birthday party and it was a blast. You could have a scavenger hunt in the mall for items or give them each a gift certificate for the mall. Als you could have a limo party and have a limo take you and your friends to your fav restaurant then you could have a talent show when you got back to your house. If you like wheel of fortune or hollywood squares you could have a gameshow party and play games like jepordy or pyramid. Good luck on finding an idea and I hope your birthday is great!!!