BIRTHDAY PARTY IDEAS

Ok so my b-day is in 20 days!!! and i still dont have any ideas!!! well i do. But idk if my mom will let me do it! ok so my idea was to go to chattanooga (since i live in TN) and stay at a hotel for the weekend. And invite at least 3 friends. And then on saturday go get pizza and go to wonder works then go to the arcades and to the go-cart places and stuff. But im having second thoughts. Any ideas???