What you need:

• White flour;
• Warm water;
• Snow animals figurines (seals, penguins)
• Large plastic sheet or a tuff spot tray (cement mixing tray);
• Additional protection for the floor (tarpaulin sheet).

Not much explaining needing for this activity, but plenty of cleaning after so do make sure you put loads of protection on your floor. I have a tarpaulin sheet which I use whenever I need extra protection. Mine is huge and is great for parties or messy games for more kids. Use the flour as snow. To build a snowman just mix some warm water with the flour and model. I used a strawberry as hat and small bits of olives for the buttons.