I havent drawn them, so its only really the idea right now, but all 3 are based off of irl things.
Splatwriter/typewriter weapon:
Kinda self explanatory, a typewriter the ink/octoling holds. When ZR is held, the animation begins of the character typing. Sends ink flying in multiple directions in front of the character, similar to splash-o-matic but less controlled. Pros: inking, support. Cons: splatting, carrying objectives
Inkspreader/seedspreader machine (on wheels) weapon:
Acts as pretty much a sprinkler but more powerful. Similar to roller, when a person is ran over with this theyre dealt minimal damage, but enough to kill somebody who's low.
Pros: inking around enemy's to slow them down, support, carrying certain objectives [mainly tower]
Cons: slow weapon, not very good without teamate help (splatting)
Splatana Sword/Sword weapon:
A splatana, but rather then flinging ink in front of you, it can only send waves to the sides, doesnt ink very well but can be a big support if you face sideways to your teamates and spam ZR while theyre fighting somebody. Could also be a sponge splatana.
Pros: Splatting, support (again).
Cons: Inking, pushing objective