my idea is pretty simple.  hoodies.  but with spray-on waterproofing so they are water resistant, and powder skirt/bum gloves.  so basically a stylish piece of clothing that can also be worn skiing, and wouldn't cost much more than a normal hoodie.
someone may have done it already, and if they have, I'd like to know where I can get one.  I know my friend got one from loki (snowboard company) that had fold-out mittens and a ninja mask.  but it didn't have any design on it, it was just grey.
another idea is a crush-proof, padded box or pocket that could hold my ipod and/or peanutbutter sandwich.  that could actually go along with the hoodie.  and as someone mentioned before, a core crash-pad company would be good.