One for each tile earned! I just kinda grabbed a few randomly... it'll be fun to add to my collection as I continue to play! I've already submitted an assignment for Defense Against the Dark Arts:
Sock Sniper socks... knit entirely in two and a half days! And these were big socks... US Woman's Size 10!
I've got some plans to dye yarns this month too... and I've already cast on a hat for Muggle Studies. =D