Item: Baby Krampus Mask; -5 Charisma, but anyone that tries to read the wearer’s mind only finds spiders, and anyone reading the wearer’s soul only gets the smell of garlic.
Item: electronium hat that harnesses the power of sunspots to create cognitive radiation, granting sapience to any living thing that wears it on its head (or otherwise near its brain, in the case of the many monsters that don’t have heads).
Item: crateful of Unique Hats (lavender bowlers with the words “unique hat” written on it); if one member of a party wears one, they receive +5 Charisma; if two wear them, they each receive +3; if three, +1; four or more, -1 because everybody’s doing it.