I would buy a wand - maybe one that comes with a heatproof glove. I've got a Remington Pearl (I think...), £30 is plenty enough to get a good brand. If she has very long hair I would go for one with a wider barrel to make the curls softer and enable her to curl the whole length in one go. You can get ones with interchangeable barrels too, but they may cost more I'm not sure. The heatproof glove is to stop you from burning your fingers when you hold the hair onto the wand.