Looms for making placemats and doilies made of wood with nails driven 1" apart all around. Just wrap the yarn around the nails from side to side all the way around the loom and repeat for three layers. Then take a large diaper pin (or large safety pin) and tie a long string of yarn to it. Then pull the pin through every place where the layers of yarn criss-cross and knot it, making an "X" shaped knot. Remove from loom.