Lightly grease 2(12 cup) muffin pans

In large saucepan, melt butter over medium heat. Add marshmallows, stir constantly until melted. Remove from heat; stir in peanut butter and vanilla. Add cereal and 2 bottles of sprinkles, stirring until combined. Use greased hands, press into prepared pans, mounding mixture into a cupcake shape. Cool 1 hour. Remove from pans.

In a medium bowl, candy coating and shortening. Microwave on high, 30 second intervals, stirring in between each, until chocolate is melted and smooth (about 2 minutes total time).

Dip tops of cupcakes in melted chocolate. Immediately sprinkle with remaining sprinkles.

Makes 1 1/2 dozen.