I saw a woman recently on a tv show using what looked like an acrylic ruler with slits cut into it. She put her rotary cutter in one of the slits and cut a straight line on a fabric strip. She then put the cut outs together to make diamonds or something like that. I'm trying to find out where I might be able to purchase a ruler like that. I've seen circle acrylic templates with slits cut into the acrylic to make a half circle or circle but I cannot find one that is a straight ruler, not a circle. Does such a product exist and where might I find one?
Thanks
Patty in Texas