Granny Square Kitty Blanket

details:
uses the Simple Square Pattern:
http://members.aol.com/_ht_a/lffunt/flatbraid.htm
.
small: one round of pattern
medium: three rounds, used single instead of double on round 3
large: five rounds
(basically just adjusted heights as needed to make four small squares equal one medium square, and four mediums equal one large.)