Apply the mold release agent to the saucer and pour the ready mix concrete.
Of course if this composition was made with red marbles it could have been called a cherry pie.
Purple marbles would have made it a blueberry pie.
Concrete at the price of $2.69 x 60lb bag would make this composition for about $.60.
Refer to the ‘concrete for the home’ category for tips on concrete, tools and molds.