The Missile Mirror is a handy defensive item for spell casters, although any character can benefit a little from it.
The mirror is about 4" in diameter and has a rune of a satyr in a sun on the back. The front is concave and silvered. Used as is, the reflected image is distorted. It is intended that the user "black" the silvered surface over a candle, place it on a tabletop and fill it with water. This produces a crystal clear reflection. The device reveals some of it's magic by repulsing the candle black on command. The black residue forms a small pelt and can be dumped out. It can be used to make paints, inks, dyes or cosmetics. The pellet will have a value of one copper, so it is not a good source of money but will replace a candle or few.
Possession of the Missile Mirror will improve the owner's AC by 1. Anyone can benefit from this. Holding the Mirror out towards missile fire will improve a spell caster's AC by 3 (total). Additionally, spell casters will have a 40% magic resistance to magical missiles AND if successful at foiling such an attack, it has a 20% chance of reflecting the spell back on the caster.
Foiling magical missile attacks uses one charge. Reflecting magical missile attacks uses two charges. The Missile Mirror has 16 charges. The rays of the sun are a visual indicator of these charges and will pit and dent when a charge is used. If all of the charges are used up, the Missile Mirror will still provide a -1 to AC for simply having it and will still be a useful mirror.
The Missile Mirror can be recharged by a silversmith of great ability. By repairing the pits and dents on the rays, they are restoring a charge. While the mirror can be damaged by abuse, an attempt at recharging it will never damage it. Failure to restore a charge causes the smith's patch to bubble and hiss before being absorbed into the mirror's structure. The materials needed to repair each ray is 20 silver pieces or a like-sized slug, bar or ingot. The makeup of such repair materials doesn't matter, only the size or volume counts. Some people use spoons.
Week 1 of 52 - Magic Lamps
Week 2 of 52 - The Rat Bag
Week 3 of 52 - Emulous Cursed Sword
Week 4 of 52 - The Cloak of Peaceful Repose
Week 5 of 52 - The Cowl of Death
Week 6 of 52 - Scimitar of Smiting
Week 7 of 52 - The Symbol of Sol Invictus
Week 8 of 52 - The Equi Phalera
Week 9 of 52 - Libertatem
Week 10 of 52 - Sorrow
Week 11 of 52 - Aemilla Carna
Week 12 of 52 - The Obice Cardeam
Week 13 of 52 - The Gnollish Rattlebone
Week 14 of 52 - The Bands of Roland
Week 15 of 52 - The Shape of Memory
Week 16 of 52 - Defender's Boss
Week 17 of 52 - Missile Mirror
Now, the commercial. I have a little book called Zero to Hero: Uncommon Commoners, over at DrivethruRPG. I am obviously thinking of writing another and Gnolls might be the subject. Please let me know what you think in the comments.