Finally, I grabbed a press stud and some green sewing thread so that the i-cord (somewhat longer than the 1" called for in the original) can be folded over to create a hanging loop.
Yarn: Schoppel-Wolle Zauberball from Natural Stitches, Pittsburgh.
Mods: Used fingering weight yarn held double (3.25mm needles) instead of DK weight. Did the colour changes as and when I ran out of yarn in a given piece of green. Increased the i-cord length to about 8cm. Once finished, I knitted on a pocket and fastened the icord to the pocket using a press stud.