if you have a dollar store close to you they have these craft boards that come in white or black its usually by the construction paper. it comes in big sheets of about 24inches by 36 inches. i get these and then i cut it into the size of boards that i want like 9 1/2 inches by 12 inches. then i wrap my material around these and it is just like using the expensive cards. and whats best is that you can cut it to the sizes you need. i have big ones for large yardage and then i have some 4inch by 6 inch for my fat quarters and little pieces of fabric. works great for me. the sheets are one dollar and i get 7 large cards out of it. so you can see this is a very cheap way to go. hope it works out for you