i went through the great idea process about 7 years ago and managed to get it to a fairly high level, but like so many good ideas never made anything from it. a good friend's son came to me with just a toilet paper sketch of something that couldn't be made. he wanted me to fabricate a prototype, and gagged when i gave a rough estimate. the actual concept of a shower safety system for seniors could sell. we formed a company to develop it further and each kicked in some decent $$$. i redesigned the entire product, made a few rough prototypes to test the concept. we decided on a design, than i designed the molds, built them in my shop, designed and made several thousand small venturi pumps from delrin, found a supplier for the chrome finish. we shopped for supliers of tubing, suction cups, bottles, bottle pumps, shower heads, screws, boxes. we put up a website and actually sold a few dozen. than we hit the big time. the product was entered in a HSN contest for the best new product. he went to fl for the finals. late in the afternoon i got a call, "WE WON" holy shit. got trips to fl. a po from them for 1000 units and a couple of good time slots. we thought we had it made. i can't describe what it took to produce, assemble, inspect, skid, shrinkwrap, ect that thousand in just 4 weeks. the thousand sold, but not fast enough, so no reorder. the website sold a couple a month while we shopped it around to potential buyers but never got beyond "it's a great idea". tried the telemarketing co. route but no interest. finally it was more trouble than it was worth and costing money so i shut down the co. the remaining stock is still in my garage, the molds are in my home shop, and the patent hangs proudly in my home. it was a great experience and i would do it all over again just for the thrill and expectations.
if you have real faith in this product, go for it. if you don't, you will never know. but be prepared to spend some $$
refine the design, make some good prototypes and test the hell out of them, smash them, try to break them, than make them better. finally, find someone who can market it, the best product is worth 0 if it doesn't sell. and if it is a really good product, TRUST NO ONE.