This colorful afghan is crocheted up in 4″ afghan squares. The pattern provides instructions for changing up your colors for the two squares. You could also mix and match this with left-over yarns if you wanted to.
The pattern recommends a Knitting Worsted yarn and a plastic hook No. 5.
If you enjoyed this free crochet pattern, you might also enjoy more designs made available on Free Vintage Crochet.