A girl who goes by "Miss Violet Lace" is selling hair perfume on Etsy. I have yet to try it, but it looks delectable! :)
It smells like sweet taffy, which sounds awesome. :) I always spray perfume on my hair anyway, so perfume actually made for my hair sounds great!
Sephora sells hair perfume too!
This kind is called "Aquolina."
Here is their description of the product: