E.C.
Hurry to buy this month's "Entrepreneur" magazine. It has the best franchises listed. (However, I think they are all restaurants; but the more you know, the better, right?!)
Also, go to www.entrepreneur.com where you can find TONS of informations.
There has been a company that has been around for a while called, "Mellaluca"? Check into the spelling. I probably don't have it correct. I do know that they are "green", and women who join it has been quite successful. I THINK it might be one of those where you have a downline though.
Never forget the power of your mind to create your own business. It is YOU that can create the best opportunity for you - not following somebody else's outline.
In you saying that you are interested in children's enrighment programs or a green company, consider something like starting a line of books geared toward children on how to live a green life and how fun it is. You could take this WAY beyond this and turn it into an enterprise. Something like:
1. Write books for kids from newborn to 6.
2. Have a website that offers not only the books, but diaper bags, diapers (diapers could be offered as an affiliate), videos, clothing (for moms and kids), even a membership to your site where you could offer monthly deals from eco/kid friendly companies through your site only!
3. Teach classes @ local rec centers, and allow that to grow into what it may...
4. Talk at local mom groups (you know, where you and your little kid go to get some "adult" time...)
Those are just off the top of my head. If you have any questions - email me!
Good luck!! :)