Jinny Beyer has 'Twin Sister' block-- block # 20 that can be done in 3 sizes. Block is the same from Eleanor Burns in Quilts Through the Season, video also on her site:
http://www.jinnybeyer.com or
http://www.quiltinaday.com/theater/2800Series/2805.html
Sister's Star quilt block:
http://www.ideas-for-quilting.com/si...uiltblock.html