This list of ice processing tools is by no means complete; for example, I have seen ice crushed via wood muddler in a mixing glass. And there are plenty of ice geeks who want to go even more old school and render large format ice down into the proper size and shapes of their choosing. Drink in Boston, for example, purchases 50 pound ice and uses a variety of shavers (think wood planes for ice), cleavers, and ice picks. The shavers seem to work the best in terms of generating the finest ice without electricity albeit with a bit of time and effort. For some of the best ice picks I have ever seen, go visit Cocktail Kingdom and look at their Japanese ice picks. The rest can be found in various antiques stores (although I have no clue how long John Gertsen of Drink searched for his bar's tools).
Cross-posted to the Mixoloseum blog.