I have used them also with "Patch Work Party" block of the month. They are costly, so I used the template patterns that are included with each block, traced them onto template plastic, and cut them out. Then I ironed and starched fabric, folded it eight sides together according to the pattern layout on the instructions, and traced the template on the back side of the fabric. They can then be cut out with a rotary cutter, or I found it easier to cut out with fabric scissors. The block went together perfectly, and I saved a lot of money.