Get our free book (in Spanish or English) on rainwater now - To Catch the Rain.
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|File:3D molds SCRAPHumboldt.png|Example of 3-D wax mold.
|File:Parabolic heater SCRAP solar heater.jpg|Parabolic Heater- Focuses the Sun's energy to a point where the wax has been placed.
|File:Example of crayon SCRAP Solar Heater.jpg|Example of crayon/candle
== Costs ==