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When finishing a flat panel, I use plastic soda bottle caps as standoffs to raise the panel above the bench. First, I finish the back side of the panel. Then I set the wet side on the upturned soda caps and finish the front side. One small problem–the soda bottle tops have a series of protruding points, from breaking the safety seal, which leave a small ring. But that ring is easy to sand out. –Rich Flynn
