With knitting being a very popular hobby in many countries around the world, there is a huge number of retailers all offering various thicknesses of knitting yarn, along with a variety of knitting accessories that are claimed to be more or less essential for various projects.
The charities have a lot of information on their websites, below is some general advice to help you get those needles clicking.
First and foremost it will be a great way to spend some quality time with your son or daughter. (Yes boys can work with yarn too!)
Cowls: Now, here is a project that is hotter than hot. Cowls, aka mobius knitting is all the rage right now. And no wonder. These little beauties are attached at their ends when finished and they are also called Infinity scarves. Besides looking just terrific with any wardrobe, cowls are the best warmer-uppers on cold winter days. Easy to knit, they can be finished in a weekend.
Confetti Yarn: This yarn is very lightweight and soft as soft can be. It usually comes in pretty pastel colors, just perfect for knitting for baby. You can use this yarn with another, or on its own. I used confetti yarn when knitting a blanket for my granddaughter Julia. I alternated rows of confetti with rows of another soft pastel baby yarn. The results are wonderful.