The Dodge DynaMax is a rare care, coming at exactly the wrong time in history. The End of the muscle car era was nigh, and the market was already filled out with GTOs, Mustangs, Camaros, Chevelles, Novas and a dozen other high performance poor handling vehicles. The DynaMax had a plan to dominate the market with a combination of factory turbochargers and a complex eight speed gearbox. The machine was planned to triumph over the human driver element. What ended up happening was excess costs and mechanical issues saw the turbochargers removed and replaced with a conventional supercharger, and the eight speed transmission ended up being the bane of the car's existence. More DynaMaxes were destroyed or totalled by transmission failures than anything else. The car remains an ugly and ambitious reminder of a day gone by
The Langdon Ballistics company has a short and muddled past of producing shoddy and cheap weapons. Stocks are made of orange plastic with black paint coverings, and metal components of the weapons they make are typically low cost alloys. Their most famous weapon is the L-12 Scatter Rifle, a fairly high power large bore shotgun. It is easily recognized by its orange stock and pronounced ammo clip.
A massive trebuchet constructed by the reigning tyrant, it can hurl the heaviest loads of any trebuchet to date and is the most destructive, non-magical weapon currently in existance. The Thought of Warwolf setting up on their lawn has quelled many a rebellion.
An alloy of iron and iridescent meteoric metal, also known as shadesteel. Weapons forged of this metal cause gangreneous infections almost instantly and sometimes the victims becomes a shambling zombie after death. The material is very vulnerable to fresh water which will cause it to corrode and eventually melt in a period of hours to days.
A Cloak of Shadows that causes mushrooms to grow in its own shadow. A crouching theif might find himself in a ring of poisonous toadstools, an interesting thing for a sentry to find after the thief has left hiding place.
The blood of a dragon is vital in the creation of potions of longevity. The liver could used to cure any disease or ailment, while the heart could restore a PC to full and complete health, despite their age, or injury.
Alchemical Gold - popular in the weapons of the nobility, this allows for gold to be used in their swords and lances without the fear of the metal bending, deforming or otherwise breaking in combat.
The Red Lipstick - almost blood dark, this lipstick changes to become the perfect shade of red for the woman, and only woman, wearing it. She will attract positive attention from men, and will be the subject of female envy, for who else has such perfectly red lips?
A Magical Hat that has only enough magic to stay on its wearers head, in spite of wind, falling, or even being turned upside down. The owner, never having to pick up his hat gains an extra swagger to his step, and a small boost to charisma.
A pair of ladies lace gloves, that once donned, give the wearer a quick, and very tidy manicure. Nails are properly trimmed, sanded, and come out with either 'French' (insert game name) style nails, or their nails colored in the manner desired by the wearer. Useful for removing hangnails, and other cosmetic problems
A simple flag, faded by time and sun, tattered and worn by untold years flying from the pole of a bannerman, passing hands from officer to officer, from one generation to another. It is a humble symbol of great importance, and greater inspiration to those who see it. Soldiers become heros filled with espirit de corps, enemies loose their nerve and fire. It is not an enchanted item, but a powerful item still...
Expansion from the Horse Brass item: Specific Armor charms.
Cooling Touch Charm: protects horse against extreme heat, and fire, magical and mundane
Jove's Favor: tin charm shaped by a lightning bolt that protects a horse primarily from natural lightning, but also potentially from lightning based attacks. In real life, lightning kills quite a few horses and cattle a year.
Hermes' Blessing: gold charm that grants the horse magic resistance, and perhaps immunity to cantrip level magics.
Vulcan's Steed: This large iron charm in epic fashion renders the steed invulnerable to iron weapons. Such things clatter off of the animal's hide like twigs.
I was in a game with a GM that had a Masters in History, who made is a point to mention that the local peasants didn't have wheelbarrows. The rest of the players just shrugged that off but I knew that the GM was trying to tell us the peasants were on the knife edge of starvation.
All that from wheelbarrows? Yes, because before the invention of the wheelbarrow it took two men to carry that load. In it's time the wheelbarrow was the most explosive production multiplier that the peasantry could get their hands on.
This is worth two tips: One about the power of the Wheelbarrow and the other is the moral of the story...that people need to know the point you are trying to make.