I am making templates 12 1/2 and 10 1/2 so blocks are a bit bigger. If the backs were cut out of strips cut 12.5 'they should line up somewhat, and if you wanted a square of material 10 1/2 inches and sandwiched with school glue and then quilted should work if you don't want to do scrapy. Have been checking out QAYG and there are other ways but they are way more complicated than this method.