Well, I figure it's about time I added my own submission to the icon section.
This is the Luigi disguise that, at first glance, makes you appear to be Luigi. Same clothes, eye color, hair color, etc. The only thing missing is a moustache. (Which was excluded for a reason...this is only a disguise, after all.) It is made for a ninja, so it lacks some states that other classes require. You may modify it if you wish, but please give me credit.
Now, here's a link to download it from.
EDIT: This is a revision, with a few fixes applied.
Luigi Icon
I would provide a set of screenshots, but I feel that it isn't worthwhile, as downloading it outright would be simpler.