I bought my DD a set of Prismacolor markers.
http://smile.amazon.com/gp/product/B007L4MFS8?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00
Copic markers are also really nice art markers. They are pricey, but from what I understand they are a true artist marker. Which ever type you buy, make sure you buy the proper paper. Marker paper is made to not absorb the ink as much as some other types of paper and is very smooth. If you don't want to buy from
Amazon, there are a ton of different art stores online you can buy from. Some have really good prices, some not so much. Also, Micheal's, Joann Fabrics, etc. have discount coupons that make them more affordable also.
My DD13 is probably going to ask for a new pair of Dr. Martens, anything from Hot Topic (I'm seeing a trend here. LOL), concert tickets (last year we bought her ones to a music festival and the whole family went.)
I think I'll get her an electric razor since she seems to think this would be better for her. I also will be buying a bunch of art supplies. I don't know where she gets the talent from, but she loves to draw.