Bake cupcakes according to box directions.
Transfer to wire racks to cool.
Cream butter in a medium bowl
Slowly add in the powdered sugar, and milk as needed, until everything is incorporated and frosting is right consistency.
Add several drops of color and whip a few more minutes to get even color.
Roughly ice cupcakes to resemble grass.
Place 4 M&Ms on center of cupcake slightly on edge and overlapping to make head and body.
Cut 2 small pieces of edible easter grass to make antennae.
Place 2 Flipz pretzels to make wings.