13 Year Old Birthday Party Ideas?

I'm turning 13 and I want to have a really fun activity for my sleepover birthday party. To go somewhere i mean. Someone already took my paintballing idea. So i lucked out of that. I'm having like 10 girls so its no going to be huge but like it will be AWESOME! help please!!
Update: Thanks but bowling partys and pool partys suck. Everyone does it.
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