I can also recommend Captured on the Rye (Pellatt Road) spin painting parties. My teen and 7 friends had a fantastic time there recently, and they all left with a beautifully unique t-shirt or bag, as well as a sugar high from the monumental candy floss. Great value, and I can say from experience that the t-shirts last forever (we have two from 4 years ago which are much loved and still going strong!). It can be tricky to find something different for teens, and this absolutely hit the mark.