henna tattoes on a bald head

Have heard about this - instead of covering the bald head caused by chemo, have a henna tattoo painted on. One friend thinks it's gross and the truth is, I couldn't do it now anyway as have stubble on most of my head where the hair had not yet fallen out.

But what ya think?

http://empressoftheuniverse.blogspot.com/2006/11/my-new-canvas-ronis-bald-head.html