Could go as far as a portable shop-vac which you could use to pick up liquids for like 1/2 the amount you dropped (module two stuff on the ground to prevent 1:1 sucking).
Maybe we could go with a pesticide sprayer for major damage on insects (could open a venue for monster-biased weapons), and maybe a welder+sprayer+gasoline can be a single-puff flamethrower, reloads with gasoline or batteries. (maybe even have dual ammo weapons like that)