The quilt shop that I do the BOM through runs theirs with you buying the first block for $6.00. Finish that one and bring it back the next month finished and you get the next one free. So you can do the whole year for just $6.00 as long as you bring the finished one back from the month before. They also offer an extra block every month that you can purchase. Some people want a bigger quilt so will purchase the extra one, but a lot only get the free one. They run it with two different colors, like cival war, brights, batiks or 30s. Every year it's different.