sharp drum
I'm not sure if this is in progress or has been seen by you guys before, but when I searched for the idea every post was over a month old so yeah.
It would be nice to have some kind of loose way to connect two ships. It could be ropes, magnets, or anything else. It would mainly be good since having two ships and having to travel far away can be annoying since they are incredibly easy to lose.
On the rope idea, having some kind of winch mechanism that shoots forward and sticks to ships would be a good since you can use it quickly. It could also stick to terrain, or be used from terrain to stick to a ship. It could be used to pull things in if given rotational force. This would be the Grapple Sticker.
The winch thing could use the slimy end to stick to things and look like a blend between the rope pulley's design and the sticker's, while being omnidirectional. Powering it with redstone could launch it. If it fires just straight this gives players incentive to build aiming and control systems for sticky cannons to stop ships. If it goes across a gap the rope could be walked on or just moved across in some way.
undone pebble