[DonRotolo]

I strongly urge you to get competent advice before venturing into a business. There are a few threads on the topic here on CD to start. Find someone who is in business, or a business/economics teacher, and talk about some of the things you need to concern yourself with.

Such as patent law and unscrupulous compaines that prey on naive inventors.

Such as state and federal regulations (Taxes, for example. The IRS doesn't care how old you are, you have to pay taxes)

Such as product liability (but don't let that scare you away)

Such as inventory carrying costs

Best of luck with all that, could you be the next AndyMark?

Don