Already done. I have physical prototypes and the rest are in CAD waiting on a prototype for that, then machine shop that'll pick up a small production run. I think I've gotten as far as I can before needing to actually set up a site and get the LLC or whatever. The profits we projected at our in house stuff at a very lucrative ratio. I dont expect more than 20% on the drop ship items.Which will help if your items are marketable. You need capital for r&d, prototypes, etc for your ideas.