some nicer quality lip balms from Ulta. You can probably pick up a gift set anywhere from $10-$20.

Those fuzzy socks that have sayings on the feet (like "if you can see this, bring me treats.")

Bath bombs. Lip balms.

Then add a gift card to it.

I'm getting her a gift card as well, but wanted to get her something wrapped.

Definitely a gift card

I need to buy a Xmas gift for a teenage girl I don't know very well. (She's been doing some volunteer work at an organization with which I'm involved, but I don't have much contact with her.) $50 or under. Any suggestions?