I make a lot of bottle stoppers using the silicone stopper from PSI. Through Wood N Whimsies they cost me 79 cents each. I have one winery customer that doesn't even consider the SS versions after he tried some of the silicone stoppers. Using cedar fence staves for my wood I have less than a $1 in each one. With a rough natural look, using a production line set up, finished with spar it takes me about 10 minutes, from start to waiting for the finish to dry.