Coconut BonBons

1 (15 ounce) can sweetened condensed milk
1/2 cup butter margarine
2 cups confectioners' sugar
1 (12 ounce) package grated coconut
1 (24 ounce) package semi-sweet chocolate chips
4 tablespoons solid vegetable shortening

Mix together condensed milk, butter, sugar
and coconut. Cover with wax paper and chill
for 24 hours. In the top of a double boiler over hot (not boiling) water, melt chocolate with shortening. Roll coconut mixture into 3/4-inch balls and with fork dip into chocolate. Drop on wax paper to cool and dry.