noted afghans may be knitted crocheted or made by tunisian crochet afghan stitch each of these needlework methods may provide a wide variety of stitches and each may produce a somewhat different effect the method chosen may be made with a specific stitch pattern in mind or the selection of the stitch pattern may be made after the needlework method is chosen these determinations may also depend upon the degree of skill of the fabricator the next step in fabricating a commemorative afghan may be the selection of the yarn to be used again there may be many choices such as wool acrylic mohair cotton and blends composed of more than one fiber the thickness and specific type of yarn may also be selected as well as the size of the implement needles or hook needed for the fabrication the size of the implement may depend on qualities of the yarn such as thickness and texture and how tight or loose the fabricator works the qualities of the yarn and the size of the implement also may determine the number of stitches and rows needed to make up a square of a certain size the thicker and the more highly textured the yarn may be the less stitches may be in a row and the less rows in the square this consideration may also bear on the time needed to construct the afghan the fewer stitches.