James Raggi has unveiled the results of his LotFP Magic Item Contest and I was not amongst the finalists. As a result, I am publishing my entry on the blog. Enjoy.
This magic item assumes you're playing in a Renaissance campaign, which anyway seems to be the focus of the latest LotFP supplements.
The Shrink Bullets are created by black powder-inclined magicians only. Their creation requires assistance by an alchemist that has undergone training in modern chemistry, and who shall hence be paid the double wage normally expected by an alchemist. Each Shrink Bullet requires 1D6 days of laboratory work and 1D12×50sp worth of materials.
Each Shrink Bullet is worth 5,000sp (because of its magical properties; the materials themselves are worth as per above). The Shrink Bullets can only be used in a perfectly hand-crafted gun, worth at least ×10 the price of a standard gun.
Each Shrink Bullet ignores up to 5 points of armour protection, but does 1D4 of damage only. If the result is a natural '1', the bullet doesn't inflict any actual damage but releases its dweomercraft. The target must save vs Magical Device or be "shrunk" and captured within the non-exploded bullet.
Later on, the magician may use the non-exploded bullet containing the captured victim against another target. This time, upon impact, the bullet won't inflict any damage but will release the 'captured' victim, full-size, right next to the intended target. The 'captured' victim will fight on behalf of the magician, at his full strength and capacity at the time of capture, for a duration of 1D12 rounds. At the expiration of the last round of bondage, the victim will have no recollection of what happened to him after the bullet impact that captured him in the first place.
A magician is limited by his level in the number of captured victims that he possesses in his Shrink Bullets at any given time.
Captured victims are constantly and unconsciously trying to regain their freedom. Every day, there is a cumulative 1% chance that a captured victim is spontaneously released from its Shrink Bullet. When this happens, the freed victim attacks the closest creature for 1D12 rounds as per above.
Creatures only hit by magic weapons have a +4 bonus when saving against a Shrink Bullet.