|Some of the chalks|
|Louise and her pink dip dye|
|Erin with a blue dip dye (and a snazzy hat)|
They were fairly quick to do and they looked really snazzy but we did find them kind of awkward to apply and quite messy on your hands but it does wash straight off with water so it was fine.
So one morning we both used the chalk to "dip dye" our hair (Louise's pink and mine blue.) I found that some of the colour came off on my clothes, it did wash out but my clothes were dark; and I think white would probably stain! Although before we went out Louise sprayed her hair with "Label M Protein Spray" (http://www.amazon.co.uk/Create-Label-Protein-Spray-250ml/dp/B001W9SIPW/ref=sr_1_1?ie=UTF8&qid=1352317703&sr=8-1) over the chalk. The spray is meant to even out porosity and protect hair/hair colour but it seemed to stop the chalk going onto her clothes.
I really liked the dip dye, once it was done it looked jazzy. It did come out within one shampoo, although Louise's hair which is blonde held the colour for a few washes.
Overall, I would say go for it! YOLO :)