Cool, I like the idea. Oddly, mine is a hair thing too:
I would really, really like to cut my hair back to my jawline or above, but my jaw is still too sharp to do it. So I'm stuck with an inch or two longer than that unless I want to look awful which means my hair is forever getting in my face and trying to convince me to eat it. However, if I can gain 10 pounds my jaw might soften enough that I can do as I like with the hair. Fingers crossed!