A few months ago I went to the Old Bus Depot Markets in Canberra (apparently there had been a sheep and wool show the previous week... my timing sucks). I found a stall which had skeins of yarn which each consisted of 3 mini-skeins. My four-year-old companion glommed onto a vivid pink and blue skein, and I chose a green and sparkly skein for her six-year-old sister. Unbelievably, I have actually finished the scarves (loop scarves, to help prevent untimely loss) while there is still cold weather ahead! I handed them over this weekend.
The colour sequence was determined by relative length of each yarn in the skein. The green scarf is knitted straight, the pink and blue scarf is a feather-and-fan variation which uses kfb rather than yo.