Most trick or treat bags are the thing you replace next year. This one is a black cat you keep. Mon Ami makes the sort of Halloween carrier that gets photographed on the porch and then holds up for the rest of October, which is a different proposition altogether from the drugstore bucket that cracks at the second driveway. The cat shape does most of the work: it reads as part of the costume while a child is holding it, and as black cat halloween decor the moment it gets set down on a step. Use it as a halloween treat bag on the night, then let it hold the candy bowl by the door, carry a boo basket down the street, or sit with the pumpkins on the mantel. Among halloween goodie bags, the one that is also a decoration is the one that comes back out of the box next October instead of going in the bin.