13 Year Old Party Fast!

I really need i deas for my party! im turing 13. I have 2 "groups" of friends and i want them both to come, but im afraid they wont like eachother! because of this, i dont think i want a sleepover. It will be all girls and it needs to be pretty cheap! ideas for games or themes will help! Im leaving for vacation so if i want a party i need to decide fast! PLEASE HELP ME!
Posted by Partyhardy; updated 07/11/06