DD wants to be Ginny Weasley in muggle clothes for World Book Day - easy costume as it is jeans, hoodie and trainers plus a wand! However she wants me to try dyeing her hair red! She has a long bob, shoulder length, no fringe and it is light brown in colour. Would something like Shaders/Toners work or am I wasting my money? I wouln't normally allow her to dye her hair but am okay with this so long as it washes out in a week or so and is not vivid red! Thanks...