Bark Box Dog Advent Calendar. Bark (home of barkbox) has a dog advent calendar available at costco. This adorable advent calendar features 24 surprises for your fur baby—8 dog toys and 16 treats—and a sweet digital surprise starring your precious pup.

That’s where barkbox’s season’s treatings advent calendar comes in. The advent calendar is a bark costco exclusive and has something for just about every pup.aka toys and treats.