Sample knit in two colours using about 55 yards of yarn. A much smaller amount of the contrasting colour is needed.

From the designer: The design of this pattern is based on the iPod sock merchandised by Apple. You could also use variegated or self-patterning yarn, or make up your own pattern of stripes. This pattern is a great way to use up bits of
leftover sock yarn. Just make sure the resulting fabric is fairly snug!