The squares, ranging from 5" to 12," are all shown crocheted using worsted (medium) weight yarn. However, you may make the squares in any weight yarn or thread you choose, which will of course change the size and appearance. You should also feel free to change colors to suit your own taste and decor. Different colors can completely change the way a square looks. Patterns include Water Lily, Coral Coneflower, Ruffle-Go-Round, Pineapples, Whirligig, and more.