Backpacks with Shulker chests.

Brave Rubber Duck

Sally little helper
Evil
BraveRubberDuck
BraveRubberDuck
Evil
#1
It's a simple idea. Have the Shulker chests be used as a backpack, allowing you to open it without placing it. I found an old plugin for it (https://www.spigotmc.org/resources/shulker-box-plus-1-10-1-12-active.38604/) but I'm not sure if there are updated ones.

It would be useful both in OOC (so you can use them on the fly and in areas that you can't place them) and in RP, if you want to give someone a pouch or a bag with something.