I don't buy too many specialty rulers but have purchased a couple rulers from Missouri Star when I see how lovely Jenny Doan's quilts turn out using certain rulers. And I just purchased the Creative Grid Pineapple ruler from LQS when they had a big sale. I bought the bigger one which I can make a 6", 8" and I believe a 10" block. Anxious to try it as Jenny Doan did a tutorial on it.