Replying to XMAS GIFT FOR GIRLFRIEND

So I need to find an Christmas gift for my girlfriend today. We've been going out for over 2 years and I've already bought her a shit ton of necklaces and bracelets and she doesn't have her ears pierced so I have no idea what to get her. She's 18 but still in high school and has strict parents so suggestions of lingerie and/or sex toys will not be helpful. I'm looking to spend under $100. Please help me out NSG!!! inb4 pee in her butt.