Spread half of the crackers with peanut butter. Spread remaining crackers with marshmallow creme; place creme side down over peanut butter crackers, forming a sandwich. Place on waxed paper-lined pans; freeze for 15 minutes or until firm.
Dip sandwiches in melted candy coating, allowing excess to drip off. If desired, drizzle with additional candy coating and decorate with sprinkles. Store in an airtight container.