What needs to be remembered here is that this is your experience.
I have had several shapes/templates made at a local glass cutting shop, and have saved huge dollars. They have been cut in the same plastic/acrylic/plexiglass as our "official" quilting rulers, were accurately cut according to what I requested, with the edges buffed.
Of course, the drawback is that there are none of the 1/4" markings that come on the quilting rulers. However, often times that is not necessary.