Materials
Version A - Top left:
2 (2, 3) x 20 g balls of variegated as main colour and,
1 (1, 1) x 20 g ball as contrast.
Version B - bottom right:
3 (3, 4) x 20 g balls.
Version C - top right:
2 (2, 3) x 20 g balls of variegated as main colour and,
1 (1, 1) x 20 g ball as contrast.
Version D - bottom left:
3 (3, 3) x 20 g balls.