Im having my 14th birthday party soon but i cant think of what to do!!

My birthday is on guyfawks and we're going to see guyfawks at night. i cud theme it aroudn that, but I dont know whether to have a themed party or not, either way i dont know what to do!!

Does anyone have some original ideas for things to do for a party? Or original themes for a party? Not like a pirate party or anything.

thanks :)

ps. something that teenagers would enjoy :) :) :) :)