My mother and I co-knit these: I did the heels, toes, calf increases, and bind-off, while she knit all the parts that were just ribbing or stockinette.
Yarn: Marathon Sock by Wisdom Yarns, North Pole Series, "Elf"
Needles: size 2 wooden, used two 16" circular needles
Pattern: nothing specific, just a basic 2x2 rib on a generic sock pattern for an 8-year-old. The toe has a Figure-8 cast-on and the heel is a gusset heel in Eye of Partridge stitch. The bind-off is Jeny's Surprisingly Stretch BindOff.
The pair of socks took just under a full skein of yarn. (The kid has small feet!)