Legal Question in Business Law in Florida

This is not at all a simple question, but the place to start would be the Florida Gambling Statutes. For example:

849.15 Manufacture, sale, possession, etc., of coin-operated devices prohibited.--

(1) It is unlawful:

(a) To manufacture, own, store, keep, possess, sell, rent, lease, let on shares, lend or give away, transport, or expose for sale or lease, or to offer to sell, rent, lease, let on shares, lend or give away, or permit the operation of, or for any person to permit to be placed, maintained, or used or kept in any room, space, or building owned, leased or occupied by the person or under the person's management or control, any slot machine or device or any part thereof; or

(b) To make or to permit to be made with any person any agreement with reference to any slot machine or device, pursuant to which the user thereof, as a result of any element of chance or other outcome unpredictable to him or her, may become entitled to receive any money, credit, allowance, or thing of value or additional chance or right to use such machine or device, or to receive any check, slug, token or memorandum entitling the holder to receive any money, credit, allowance or thing of value.

I'm not sure what kind of merchandise you were thinking of giving away, but that would also most likely be considered a thing of value. Be careful with those machines. My suggestion would be that you need to fully study Florida gambling laws before using them for any purpose.