Ring, very rare (requires attunement)
A small brass and gold ring with intricate mosaic-like patterns that emit a soft starry glow and ethereal chiming when Attuned. It is a little marvel of technology and sorcery that the ancient Aabcellean people were known for.
While Attuned to the ring, when you use the last of an arrow, bolt, bullet, or thrown weapon, roll 1d6. If you roll 5, the ring creates 1 copy of the used projectile. If you roll 6, the ring creates 2 copies instead. You can create new copies if the old copied projectiles are also used. These copies are not permanent, and disappear after a minute or ten turns.
It should be for every shot if the copies are going to disappear anyways