This can be used with any washable, fairly durable yarn and is good for leftovers. The size can vary so long as each half of the ball is the same size. It’s an easy pattern to do and you can make a lot of them in relatively short order.

NOTE
Humanitarian Aid Patterns are no longer officially available and submissions are no longer welcome to the Humanitarian Aid program.

See http://www.ldsphilanthropies.org/humanitarian-services/hu... for more details.

However, if you’re interested in the pattern just to make it, you can find the pattern in the Wayback Machine. All patterns are listed on the link above.