I got several books on firearms from the renaissance, and they have some imaginative people in charge of guns... some of them are, like the final fantasy style, a gun-blade. It's a sabre with a pistol attached to the hilt. there's even multi barreled rifles and shotguns, and all sorts of crazy things. of course these are all renaissance era weapons, and i've only used terms such as 'pistols' and 'rifles' and 'shotguns' to convey the image of the weapons. They all operate with blackpowder and shot. But yeah... crazy stuff.
sj