I love samplers and have done Dear Janes, Sylvia's Bridal Sampler, and a few more. I generally mix and match to suit me. I'm working on Splendid Sampler #2 now - the block patterns were free until the book came out. They involve a variety of skills. Book #1 is out also. You can find out more at Pat Sloan's website. I also did Moda Blockheads #1 and #2 blocks which were free until the #1 book came out. If you like historical blocks, you might check out Barbara Brackman's "Material Culture" and "Civil War Quilts" blogs. She usually has a BOM going.