Chutes
Clonk. Clonk. Clo-BONK!
<&chute_recipes>Chutes are simple constructions made from sheetmetal that allow creatures and items that fit inside to drop straight down.
Chutes also insert into inventories below them and can be inserted into by conveyors or similar devices.
Items within them won't be picked up by players and should be immune to most forms of attraction, magnetic or otherwise.
Sneak + rightclick with an Engineer's Hammer to turn the chute into a corner piece that directs anything inside of it to the side and connects to other chutes.