Lay pieces end to end, trim to make them the same width.
Overlap first piece onto next piece by 1.5cm , pin in place.
Repeat with all pieces until your scarf is pinned into one length.
Machine two rows of stitching 1cm from raw edge, repeat until all pieces are sewn together.
Fray raw edge up to stitch line both sides.
Finish by sewing slight zig-zag all the way round outer edge 1cm in and fray upto stitching.