Happy granny hat

I've crocheted a lot of hats in the past two, three years, and have tried many different patterns. I prefer really colourful hats and granny square style ones are very suitable to obtain just that! In order to create the perfect pattern, I've combined various patterns I found online (Ravelry is a great source for that). Through trial and error I think I have created the perfect hat - I call this my 'Happy granny hat'! You can use any colour combination you like to make this hat yours. The photos show a multicolour hat and one in brown and cream. I've used Schachenmayr Catania, a sports weight cotton yarn and hook 3.5 (E) to obtain a hat that fits a 3-6 months old child (35-40 cm around). You can make your hat larger (or smaller) using a different yarn and hook. Another option is to add clusters (increase per 5) or to crochet less clusters. EDIT: (September 18, 2013): I received a Ravelry message from Wendy. Her comments helped me improve this pattern! I've edited rows 4 and 5, and clarified how to slip stitch into the first ch 1 space. Thanks again Wendy! EDIT: (November 23, 2014) Thanks you Lynda, who found another error in row 4 and 5. Here's how to work those rounds: * round 4 - ch 2, 2 hdc in same stitch, hdc in next 2 * round 5 - ch 2, 2 hdc in same stitch, hdc in next 3