brown colored items to wear for the maid of the brides

Ok there's a Sweetheart Dance this weekend at the school my kids attend. I have 3 girls, girl#1 wants a prom dress eek! #2 has already been told by other girls I will be cuter than You, and she wants a really nice dress #3 wants a nice dress as always. On top of that they need shoes, hair done, nails done... mind you it's just a dance not prom!! What to do? brown colored items to wear for the maid of the brides