Probably better answers out there:

Whimsy as in a bit of fun randomness. Think fae. Humans without any tend to be inflexible jerks. Like the manger in incredibles.

Trinket - some item you have on you that gives minor happiness state boost but could have dual purpose. Standard Human variations are watches, rings, pins on backpack. More witchy vibes would be something handmade from pebble, feather, or beads.