The Creative Grids® ALASKA Ruler designed by Edyta Sitar of Laundry Basket Quilts cuts a multitude of shapes in a variety of sizes. 
Cut 45° wedges, 45° diamonds, half-diamonds, squares and half-square triangles with the same ruler! Really nice thick acrylic ruler that you can use to make the Edyta Sitar Alaska Quilt in a number of different sizes which you can purchase and download from www.laundrybasketquilts.com or create your own design.