I need help!! Please

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Hey so my little cousins 16th birthday is a little over a week from now. I always try to get her something through the years but this year I’m trying to make it special! But I have NO idea what teenagers her age are in too if you have any ideas or you are not 15-17 and know something I don’t help me out!! (Now I’m spending a lot of money to even fly out to her party so I’m on a little budget 😅)