The first method, and the one
I would recommend if you are doing a whole quilt, would be to sew manageable lengths of
your 1-1/4" strips of fabric together, and then mark and cut this crosswise at 3-1/2" intervals, as shown.
To get plenty of variety in your quilt, you would want to make several different color groups of these
strip pieced units. You would also get a dramatic effect by using graduating colors in each
progression of strips; just a thought :o)
choice is to cut INDIVIDUAL 1-1/4" x 3-1/2" rectangles from
many different colors, repeating no color, this would be appropriate
for a 10,000 wishes quilt!...