This is what's written in Arthur Spiderwick's Field Guide to the Fantastical World Around You.
DIY Troll Hair Headbands: insanely easy and cute.
The Princess and the Troll Sons, from The Boy and the Trolls, by John Bauer. ""Look at them," urged the troll mother. "Look at my sons. Handsomer trolls can't be found this side of the moon. But then of course, they take after their mother.