Print out your snowman template.
Colour in your snowman's hat. I've used a black pen but you can go with whatever colour and design you fancy.
Pour some white paint onto your plate.
Dip your cotton bud into your paint and colour in the snowman using dots made by this.
Once the paint is dry you can add some details to your snowman. Using a black pen draw in your snowman's eyes, mouth and buttons. I'd recommend a Sharpie for this as it draws well over paint but as they're permanent I know they're not always the best choice with young kids in which case a chalk pen normally works as well and is less likely to stain.
Cut a triangle out of orange card or paper and a scarf shape from coloured card and glue these on to your snowman to finish your craft.