fyi, if you ever need something you can't find, give pro mountain sports in seattle a call - they will do special orders if they have access to what you're looking for ...
not sure you're only asking about ice, but i generally carry a couple of rap rings and chain links with me. i've had to leave a nut or two in the past and it's nice to have some inexpensive hardwear to attach to it instead of a more expensive 'biner.
hmm ... yeah ... we might just make this a non-technical outing this go around since we're pressed for time, but i'll definitely be keeping my eyes open!