I use the Fons and Porter HST "ruler". I love making those little buggers. Draw on the edges of the ruler diagonally, sew on the lines, cut down the middle and sew - then relax by cutting the dog ears. F&P "rulers" come two to a package. You can get them at JoAnn's for 40% off if you have a coupon. Happy Quilting - I am starting right now! :-) Edie