You'll need 10mm needles and 1 ball of Rico Galaxy chunky.
Cast on 12 sts and pattern as follows -
1st row - knit
2nd row - knit
3rd row - knit each stitch wrapping yarn twice round needle
4th row - knit each stitch dropping yarn round needle from previous row
Repeat these 4 rows until ball of yarn is almost finished leaving enough yarn to cast off after a 1st row of pattern.