How to trade/share items?

[La Gourde de Gaara]

At least having a sort of collection chest or something.

[Durai]

There is a tin in the plane when you do multiplayer, it lets you share items, only certain items can be shared.

[KönigsTiger]

The metal tin above the crafting square can be combined with certain items, unlimited amounts. EX: Take any amount of pills, combine/craft them with the metal tin, then equip it while it's in the square. You'll hold out the items in front of you, and a player just has to approach you and hold E. For items that you find out you can't trade/share, there are some ways around it (i.e. weapon/armor/explosive racks). Just be aware that any player can take the stuff out of your hand, so make sure nobody fishy is lurking to take your friend's items.