I have made many sampler quilts...my first sampler I did using blocks from The Sampler Quilt Book by Diane Leone...I went on to teach many students using that book as a basis for the class, but we also used many other block patterns. You could pick blocks of any size, and make as many as you would need for your quilt, then find or design a layout you look and come up with your own sampler quilt. Lots of options on the internet too!