A Singing Sword may accidentally have 2 personalities, one in the blade and one in the hilt, with opposing alignments, and they fight and bicker all the time.A broom of flying that also has a 15% chance whenever it is being used to leave a trail of fresh growing flowers as it passes over land.A suit of +1 armour that also has the ability to change colour with a command word (may be any colour, or limited to a selection of three).A +1 Weapon that has the Returning quality, so that it always returns to the owners hand after being thrown.A Wand of the War Mage +1 that can also convert coins into caltrops.The exact nature of the Flaw or Advantage is up to the Player and DM to discuss and agree upon, and may be comical, dark, sinister, useful, or just an amusement. The DM may allow additional bonuses or penalties to this