The oil business nearly went to extinction due to the light bulb before they found another use for the stuff...
I know a French outfit called SAIRP Composites who make ultra-light plastic bodywork panels for trucks & coaches, & so specialised is that market that they make their own tools!!! Constant ups & downs there as well, but a sound concept, & a single product small cap., the riskiest form of investment around.
After that legal tiff, why would the well respected & savy Watermark come back for another marketing agreement? For a laugh?