Taping will not work. However, if you have extra fabric, you can sew pieces together to "make" a new piece of fabric that is large enough. If you have a piece that is 1.5" wide and as long as your square, for example, you can sew it on and then cut the resulting piece to the correct measurement. Old-time quilters often had only small scraps to work with and would do this to get a piece of fabric large enough to cut to the size needed.