Practice Sheilds
Those sucky little colorful practice sheilds that take no difficulty, break quite easily, and are not very heavy or large in width/height.
I think they could possibly be made 0 slotted.
Reasons why:
1) It could give struggling no sheild skilled melee an extra small protection against projectiles when their slots are maxed.
2) The sheild is a peasant item and would never be used otherwise.
Stones
The basic throwing weapon. Very small. Very weak. Hardly ever gets kills. Realistically could fit in a small pocket. Wouldn't take up much space. Could easily be 1 slot.
Reasons why:
1) Throwing is completely trash right now, stones as a 0 slot item would open space for extra projectiles to throw with a 2 slot weapon.
2) Most throwers don't use them cause all other (1 slot) throwing weapons are much more effective.
This is a long shot but OK I put it out there.