Description from Knitty.com:
Note: All measurements have been taken with the shoes laying flat, in a relaxed state. They are very stretchy, and can accommodate much wider or longer feet.

Need a last minute gift with a little sweetness? Does the pretty, pretty princess in your life have frosty feet? You can knit these slippers in two nights with only one ball of yarn.

The yarn used is wonderfully soft, practically hypoallergenic, and extremely elastic so the pattern will stretch to fit, making these tootsie toasters an ideal gift for co-workers whose shoe size and fiber allergies you don't know.

This pattern incorporates a short row toe as well as heel, stretchy cast on, nifty elastic bind off, and picked up and knit stitches.