A plush hat shaped like a conversation heart, one size fits most, which is the sort of thing worn for exactly one evening and brought up at family gatherings for a decade after.

Soft enough to fold into a bag on the way home rather than carrying it. Take one hat if that is all you need, or the case if you are handing them out at the door. Sold by the package (1 hat) or by the case (12 hats).