I agree with all the above. make sure you make ti clear to them that they are your test adn they are deeply discounted since you are testing on them.
I would also say to tell them not to disclose the price you give them to other people. tell them they can say so and so is very reasonable. here is his card....
business cards dirt cheap
www.vistaprint.com
Im sort of doing the same thing. I dont plan on going into personal cheffing or catering but its something on the side eventually.
I got to my freind apartment who has a small tiny kitchen and they have nothing. no microwave no utensils, nothing. they dont cook ever. ive used there stove and oven more then they ever have.
I go there with all my tools, prep, pots, pans. its a challege but a good challege becuase i have to run over the check list in my head, i do as much prep at my "home" kitchen.
I usually make something for someones birthday or what ever occasion and its my gift to them. the hard part is giving them the recipe becuase I dont follow recipes i jsut kidna do it.