Inventions work for the inventor about 2% of the time. That's not because the item is not a good idea. It's because the market was not developed for the item.
I could go on and on about this, but I'll give the extremely abbreviated version.
Get the prototype done complete with packaging (no small feat).
Get a trademark.
Get a copyright on your design, especially the packaging.
Sell your idea for an advance on royalties.
Hope for the royalties while enjoying the advance.
Repeat process for new item.
If a patent is warranted, let the investor do it.
Inventors are not in the marketing and distribution business and make poor businessmen in most cases. I have been blinded by the lust to create and sell a lot of ideas. I learned the thesis the hard way. I found a book where someone had learned the thesis long before me and turned the tables to his favor. It's one of the best reads for an entrepreneur on the shelf (and there are 100's).
Amazon.com: Turn Your Idea or Invention into Millions (9781581151985): Don Kracke: Books