"Sword of Hideous Laughter": (uncommon) This sword functions as a +1 Sword that deals 1d4 extra Psychic damage in addition to its normal damage. Additionally foes hit by this weapon that suffer the psychic damage must pass a Wisdom saving throw or take disadvantage on the next attack roll it makes next turn.

"Fertile Hat": (common?) This hat is woven with wool gathered from a foul hybrid spawn of Shub-Niggurath or some other cursed fertility deity. If left alone with another hat (nonmagical or not) it will "birth" a new hat. If this occurs with a magical hat roll a d20. On a roll of 16 or higher the duplicate hat will gain the qualities of the magical hat. On a roll of 4 or lower it will possess no magical qualities whatsoever. On any other result it produces another Fertile Hat and the magical hat cannot be reproduced with again.

"Non Functional Token": (unnervingly common) These items appear to be mundane pieces of gold pieces (or other currency) in the style of whatever local currency they were acquired in. A DC15 Perception check will identify that each piece has a slightly different feature on the icon upon the piece (different hats for rulers, wings for birds, etc.). Each day that this remains in the adventurer's inventory they lose 1d6 pieces of the same type of currency as the Token. It is cursed so that the token can only be removed by successfully trading it to another vendor who accepts the currency.