Don't forget about chain - great for shredding your target's rigging and not half bad as an antipersonnel round too. (Well, if you're in a "SailPunk" setting it's useful, anyway... Arrr, matey; scupper me wi' a handspike if it ain't so.)
Source: wiktionary
I notice also that on paper are available nifty and *original* places for live sailpunk RPG'ing but I fear that RN and USN will really frown at the idea of a bunch of live role-players fooling aboard HMS Victory and USS Constitution respectively...
Source: wiktionary
The specificity of steampunk's Victorian setting, particular in light of the relative presence and notoriety of steampunk vis-à-vis similar subgenres set in other time periods ('clockpunk' or 'sailpunk' set in the Renaissance, such as Paul McAuley's Pasquale's Angel; 'sandalpunk,' set in a technologically innovative ancient world; 'dieselpunk,' 'stonepunk,' etc.) argues for the importance to the present of shifts in technological culture that took place during the Victorian era.
Source: wiktionary