Just not sure. Thoughts? My ds is 10, very artistic and creative. Loves the use of colour and always has a musical instrument in his hand. He would like some of the unicorn blue shades put into his hair. I spoke with school and his class teacher who said subtle limited shades would be ok, it would have faded further by end of Christmas hols. But dh is not comfortable with it and has asked me not to do it. What would you do?