I've cut mine out of poster board and plastic and even used the plastiic to make stensils. After using over time I knew they weren't accurate anymore so when Joann's had Omnigrid Templates for 50% I found a package of 5 sqs. for $11.45 and the last time they had the sale picked up a 2 1/2" ruler and a 1-12" triangle template. This will take care of my charity quilt needs for a long time.