Looking for some post for the top of the packout or for your handler setup that will be big enough to hold rolls of tape or paper towels don't like the milwaukee one as it locks the paper towels in place need it open ended to easily remove. Is that something you could make ?
To sell? He would never recoup his costs for r&d, product testing, let alone tooling for manufacturing. The only way to make a profit is volume. A big box store like home depot would have to carry it and the market is saturated.
Have any of the major tool companies ever tried to hire you, pouch you or your designs.....buy you out or anything like that? I've imagined you've had at least some level of dialog with their product development?