nat_84 I'm sure she would love a sewing machine, they are really handy & practical. Another idea is a subscription to a sewing/ craft magazine to give her some inspiration :0)
do you have the bid up channel,there was one on there few weeks ago it should have been �80 went for �30 its a great channel lots of things to choose from
Another useful item for the girl who likes making clothes would be a dressmaker's dummy (also known as a dress form) - might be a bit costly though, mine cost about �100 but I am sure you can get less expensive ones.