Here is a lock by the infamous SKI TOTE - I bought something on eBay and the seller threw in this lock.
I have some more locks I need to hunt up...never really used any of them.
Now I have a locker at the base of Breck so I have no need for a ski lock, unless of course I visit other ski areas.
I don't really think the above lock would slow down a thief too much. Seems like you could cut the thin cable with a pair of scissors and a little effort. Probably just enough of a pain that the thief would move on to an easier target.