I have gotten several BOMs through quilt websites that are free. There is one by Pat Sloan and she sends monthly email with link to the block and another from Thimble Creek which is sending out weekly (skips sometimes) they are mystery quilts and you can use your stash. Craftys also has a free BOM that they offer each year and you can use your own fabric. I have also bought some that I really like pattern and fabric and check with quilt shops close to you as many of them have BOMs in their scheduled classes.