A snack-happy crowd will bug out over this decadent Halloween appetizer, especially once they taste how the leggy little garnishes make its rich flavors pop.
Preheat oven to 325°F. Place both cheeses, shallots, garlic, cream, Worcestershire, 1/2 teaspoon salt, and 1/4 teaspoon pepper in the bowl of a food processor; blend until smooth, scraping down bowl as needed.
Transfer to an 8-inch gratin dish or other shallow baking dish. Bake until heated through and lightly browned in places, 20 to 25 minutes (if heated through but not browned, broil 30 to 60 seconds).
Decorate with edible insects (use dates and raisins for bodies, and pepitas and almonds for appendages), and serve warm, with crackers and crudités.