Kay.
Here's the base for my Mu cosplay that I've yet to do anything with...
http://img2.imageshack.us/img2/1875/sdc14518.jpg
cutting off the top and sleeves part. I'm just going to make the sleeve into the glove things she has. Then I'll cut out part of the middle and add lining, details, etc.
Also purchased nail polish. I got a color that looks more like Nu's than Mu's but... eh.
http://img16.imageshack.us/img16/7504/sdc14522.jpg
[blurry but without flash the color in the picture looked more like the real thing]