My lovely friend, Sarah, knit this fantastic sample out of Dyeabolical yarn. It took less than 1 hank of each color and there was still 50 grams of yarn leftover! She easily could have knit the medium or maybe even the large size. The design is called Elfe by Astrid Schramm. The yarn used is Bloohoohoo in Alter Ego and Bordello in Tenacious Sock.