the idea behind the Artistic party to strange mood connection was nothing more then a minor temporary chance increase, i was thinking something like from 1% chance to 3% to trigger for participants (i.e. they become inspired from the boost of aesthetic knowledge). Something akin to seeing a beautiful painting, and suddenly getting an idea to make one yourself.
The fueled water system isn't too unreasonable (IMO), i mean considering how much fuel you get from alternative sources like coal and lignite. Wood does scale down a lot when you make charcoal out of it anyways during the process. I wasn't particularly thinking along the lines of 1/7, whereas my first thought before editing it was to make barrels of which equal 7/7 per task.
A little extra clarification on #3, i meant it more as a scheduled thing, somewhat how you do with the new military (where they have orders for each particular month and the like). Granted, this is a pipedream at best, it would be nice for dwarfs to have a cultural system involved so they feel a little less like machinated golems or clockworks that occasionally break down and go on rampant killing sprees. My own personal image of dwarfs show them honoring the dead, particularly those who fall in glorious battle, or perhaps even religious based events (something similar to Easter, but perhaps in the name of Armok?).
The hunting idea does need a bit of refining, and yeah, they should drag back fallen comrades in lieu of meat if there are some (and perhaps if the whole party dies, the few 'survivors' die shortly after making it back to the fortress).
My only other suggestion, has something to do with the way Prisons/Prisoners interact, and had something involving issuing a "take prisoner" order rather then just a kill order which would cause your military/fortress guard or whatnot to aim for non-vital spots, or perhaps use nets/ropes/blunt weaponry to disable, tie up, and imprison the target. Some could go willingly if they feel there isn't a use in fighting back, and of course some would be too stubborn and resist to the death if they have to. This would mostly be of use only against people who 'will' become an issue (like strange moods you can't satiate), to gather information about enemies via torture, intimidation, or what have you(something to add to military stuff way on down the line), and of course, screwing with elves/humans/etc just for the hell of it.
Anything else i've in mind isn't even a remote possibility, and is absurd to the point of booze fueled dwarf jetpacks, magma catapults, or golems/homunculi/zombies powered by the souls of fallen dwarfs for the purposes of cannon fodder, haulers, or teachers in rare circumstances.