In a large bowl using either a hand or stand mixer, beat softened butter with peanut butter until creamy. Gradually add in powdered sugar in 1/2 cup additions. Beating after each addition until a thick dough forms.
Roll peanut butter dough into balls and place onto plates. Refrigerate for at least 30 minutes. Melt candy melts according to package directions, stirring after each interval until fully melted and smooth.
Mix green food coloring into the chocolate until fully green. Dip each peanut butter ball into the melted chocolate, coating it fully and set back onto plates. Place one eye onto each peanut butter ball. Refrigerate for anther 30 minutes or until set.
