1Mix together margarine, peanut butter, confectioners' sugar and graham cracker crumbs by hand. Form into 2 inch balls and place on wax paper.
2Refrigerate for 8 hours or overnight.
3Melt chocolate chips in top of double boiler. Put a toothpick in the peanut butter balls and dip in chocolate until 3/4 covered. Place on waxed paper to cool.