If it is a repeated design, you staple several squares of tissue together. Draw or trace the design on the top tissue before stacking them. Lengthen your machine stitches and remove the thread from the needle. Stitch the design with the machine and then carefully remove the staples. Pin the tissue in place and quilt the design following the needle holes. When finished, carefully tear off the tissue.
There are others but this method doesn't involve washing afterwards which would be a benefit for a wall hanging in my opinion.