You will need

Socks
4 -6 years - 3 Balls
7 - 9 years - 3 Balls
10 - 12 years - 4 Balls
Adult - 4 Balls

Mittens
4 -6 years - 2 Balls
7 - 9 years - 2 Balls
10 - 12 years - 2 Balls
Adult - 2 Balls

Hat
4 -6 years - 3 Balls
7 - 9 years - 3 Balls
10 - 12 years - 3 Balls
Adult - 3 Balls

Cowl
4 -6 years - 2 Balls
7 - 9 years - 2 Balls
10 - 12 years - 3 Balls
Adult - 3 Balls

8mm and 10mm Needles
Stitch Holder