Hello,
My sister and I have made quite a bit of money baking over the years. Easy cookies are good, as are holiday themed things such as pumpkin logs for Thanksgiving or heart shaped cookies for Valentines Day. Cinnamon roles or bread are always hits as well. We make several boxes of samples then send one box with Dad to work, along with an order sheet explaining when the goodies will be delivered. Then we go to various businesses where we know someone or have some connection and give them samples and ask if people would like to order the product. Generally people are so desperate for anything homemade that a lot of orders are made.
I hope this helps!