You start with a small number of stitches at the centre, increase at the same points on each round, and stop when you run out of yarn.

Needles:
2 sets 5mm circular needles, 60cm long
1 set 5mm double-pointed needles (DPNs)
5 round markers

Yarn:
1 x 100g skein of each:
Tiny Dancer
Igloo
Watermelon
Jelly Bean
Popsicle
Barn
Grape Jelly