I tend to procrastinate quite a lot so here I'm going to use this thread to dump my suggestions in. This might be all I draw or there might be more, but this keeps it condensed. If anyone wants to make use of these concepts have at them.
Boomstick feeds on nightmare fuel, without which it feeds on sanity. It is used to shoot gold slugs (% Chance of turning into nugget on hit).
There is also an ignition delay that makes hitting all moving targets, save the very large ones, unfeasible.
Whip deals minor damage at a slight range. Whipped enough, a hound will roll over, able to be won over with any meaty treat. However if allowed to become hungry they will become untame once more. (5 hound cap?)
The whip deals extra damage to ethereal beasts.