General & Others Which other things would you like to see be Permanently Turned Blade?

[Dettles]

Aside from just Swords, what are some other things in One Piece would you like to see be Turned Black due to Haki? For example a Ship being Black that could withstand anything without getting damaged. Or a Gun the turned Black and now can shoot pure Haki at Foes.
What would you like to see in the Future?

 

[Brush D. Teeth]

Characters in the live action.

 

[Yoho]

Nami's climatac and Zeus by extension