The color turns from black to blue to green to yellow - such lovely, summery hues.
I decided to make a light summer scarf.
First I pinned the fabric lengthwise, right sides together.
Then I sewed the long sides together, and turned the long tube of fabric the right way around again.
Then I pushed the yellow end inside the black end of the tube and turned the raw edges of the black fabric in. I sewed over the hemmed edge, simultaenously attaching the ends together. Like so:
Now I have a feather-light infinity scarf for summer use: