How about a Carpenters Wheel/Star? Here is a table of sizes:
2 inch finished squares = 24 inch square quilt.
3 inch finished squares = 36 inch square quilt.
4 inch finished squares = 48 inch square quilt.
5 inch finished squares = 60 inch square quilt.
6 inch finished squares = 72 inch square quilt.
7 inch finished squares = 84 inch square quilt.
8 inch finished squares = 96 inch square quilt.
9 inch finished squares = 108 inch square quilt.