The protective plastic packaging of a Teflon pastry maker provided the pyramidal mold which was accented by the sparkle of a marble. They fit quite well in the landscape.
According to sources the spiral plastic form came from a cup cake maker purchased at Williams-Sonoma.
Concrete at the price of $2.69 x 60 lb bag would make the price of this composition totally negligible.
Refer to the ‘concrete for the home’ category for tips on concrete, tools and molds.