Cathedral Window Candies

12 ounces chocolate chips
1/4 pound butter
1 cup walnuts
10 1/2 ounces colored mini marshmallows
1 cup flaked coconut

Melt chocolate chips in butter. Cool for 5 minutes. Add nuts and marshmallows. Mix. Sprinkle coconut on wax paper. Spoon mixture over coconut. Roll up tightly to form two large 3-inch diameter logs. Refrigerate until firm. Cut into slices.