Hey, theese are a few ideas i had for minecraft.

Hammer

This is a stone hammer, it would mine stairs, craft tables, furnaces, chests, etc. a lot faster.

Sailboat

Sailboats would go triple the speed of boats.

INK


Ink would be a placeable block you can dip a quill in (feather) to give it enough ink to write on 5 pieces of paper,
and paper would be placable so you could see what you wrote on it, so it would be like a sign but it would have more space and you would have to right click it to open the GUI to see what it says.