Open Brainstorms

a animal care center called life jacket

airliner manufacturing (e.g. Boeing, Airbus, Bombardier)

A craft business that re-teaches people to play with crafts supplies to make them expand on their base knowledge.

I would own a hostel or English Book Store/Music Shop in a beach town of Europe. Probably Greece (Santorini) or Portugal

Music-creating machine. Maybe a website - you click a button and hear a new catchy melody.

This not direct answer: But create a Profitable NGO, i.e. be so successful that we can provide to those who need and never have to stop .... starting with education

Gerbil breeding.

I would love to run an international chain of creches (day care centres) for working couple at affordable cost

a café ;)

I'd start a business that could generate a large amount of passive income - something that costs near zero dollars to run, but actually generates a large amount of profits.

Common Sense Consultant...hire me to analyze a situation, mediate, or lead a brainstorm session. Loads of people and companies can't seem to figure out the solutions to the simplest problems. I'd offer reasonable rates or would be willing to barter for services.

Large Helicopter commuter service for busy cities of the world.

I'd start a biz that incorporates all my hobbies. It would be a multi-level jazz/blues/live music club that would also be a bbq joint that has great whiskey/scotch/bourbon & cigars. It's probably not the type of biz that contributes a whole lot to society, but it would be fun!

I'd start a biz that helped teach business people how to use their creativity to become better networkers.

e.g. I'd start a biz to...

e.g. I'd start a biz to help entrepreneurs get going towards their dreams.