The witches are made with No 3 yarn (DK, Light Worsted). You crochet 2 strands together. Use a 5 mm hook (US: H/8, UK: 6). The pattern is already for sale on Amazon.com and Amazon.co.uk for the Kindle.
You can make the witches bigger or smaller, without changing the pattern. The witches are about 16.5 inches/ 42 cm high. (In standing position excluding the hat). They are great as Halloween decoration or as a present for a little girl.
The pattern is sold on Amazon.com and Amazon.co.uk. It will soon be available on the iBookstore, Barnes&Noble and Kobobooks. (Translations are also in the making)