Yup... I think there are two muggles signs there now. One on Jar-Jar Binks in the front display area (he's holding the stake to the money plant now) and I can't remember exactly where is the other one... On the clone trooper? Certainly not on V, he is too cool to be a muggle.
I have to agree with Dark_Ani on this. There are times when you just have to be practical and not shave off all your hair, deliberately mutilate your face or go to the Tower of London to be racked by one of their dungeon equipments just to get the right height and size for the character. Or god forbid endure cosmetic surgery just because you aren't as pretty or handsome or while you are at it the same ethnic or sex as the original actor.
Most of us do have a life to carry on besides costuming. Wearing a wig or a cap to hide yourself for the next two months until you grow things out may not always be an option. What seemed like a very good idea for costuming that time, may be something you would regret for months to come until you are 'normal' again.
I would not permanently dye my hair or try out a mohican cut, going bald, tattoo my face or file my teeth for any reason because there will be consequences to it that I would have to pay in the near future - like employment and other small tedious details. You know, just the usual stuff. There is a definate limit to my fanaticism. When I am in the entertainment business (Hah! Yeah right!) on a more permanent basis, then we can talk about more interesting things I can do to myself in name of fun.
Others may do as they please... it is their life and their choice after all. C'est la vie.
And I would agree with Rhyden and Dark_ani on this. BTW marvelous looking costumes there! Maybe I can come as He-Who-Must-Not-Be-Named next time. Hehe