The cutting edge of sleep technology
The Glow Lights of the Great Library. This set of five unbreakable crystal balls provide bright magikal light so people can read among the rare books and scrolls in the Great Library without risking candles. These innocuous items are often overlooked. They would not be, if anyone knew their origins were with Corvus the Mad.
The Dragon Carved Egg, is a perfect crystal egg, the size of a goose egg, etched with images of a pride of dragons. It grants the one holding it immunity from Dragon. This item is another Legacy of Corvus the Mad. In fact, his signature is written in tiny script in the edtchings.
What if the sources of precious metal in the realm all failed, so that the only sources for gold and other precious metal were hostile foreign lands? Gold coinage might become increasingly rare, resulting in hoarding. Player characters that appear with masses of treasure might be suspected of being in the pay of foreign powers.