ARTIFACTS AND MAGIC ITEMS
This gilded armor is made of an unknown alloy that feels light, almost as if it pulls upward on the wearer instead of weighing down. It doesn't impose disadvantage on Stealth checks, and it weighs half of what other armors of the same type weigh.
These five marbles are about 1 inch in diameter, with swirling black and red patterns that are always moving. When rolled on a surface, they don't follow a normal gravitational pull, but instead roll toward magical auras, and most strongly toward auras caused by necromancy, rune magic, blood magic, or shadowmancy.
This sword is long and narrow, nearly six feet, but feels light and agile when held. In addition to all the attributes of a greatsword, it is a finesse weapon.
This simple headdress is fashioned with a leather cap, feathers, and animal bones, but the central piece, positioned at the brow, is a jawless human skull. The skull is bleached and painted in the wearer's blood with intricate primordial symbols. When touched by moonlight, the skull appears to have eyes that watch the people within sight.
This wand is made from the elongated finger bone of a celestial being, stained in a devil's ichor and etched with terrifying runes. Fiend's Trifles are so named because they're a favorite gift among devils and demons. Those that are patrons to a mortal warlock will sometimes use a Fiend's Trifle as a reward for particularly good service.

This crystalline nest is three inches across and sits comfortably in the palm of the hand. If you put your ear to it, you can hear hundreds of voices arguing in a din of shrill whispers. It was made for Andelbrand, the bastard king of Dorgard, by an elf witch whose name is lost to history.