Using a variety of colors, you can crochet one of these hats in an evening.

Hat in Patons Look at Me is preemie to 3 mth size
Hat in Patons Astra (royal blue) is 3 to 12 mths size
Hat in Patons Astra (yellow/purple) is 12 to 24 mths (toddler) size

A quick hat for those unexpected giftings. Great for using up partial balls of yarn left over from other projects.