A pinner did this. My suggestion would be to add cardboard or something up the sides to hold water. My garden did SO WELL, but it dried out easily. Also, in the individual holes, I planted herbs, green peppers and zucchini. They did excellent also!
Banana Bread In-A-Jar. If you put a canning lid on them when they first come out of the oven, they seal, and they will stay good for about two months. Dessert in a jar for Christmas. Could do pumpkin bread, carrot cake, and applesauce cake. You can do it with any moist bread or cake.