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I found the pattern during a crawling through Ravelry, but i usually wear different slippers, so the pattern gained an heart and stop. Then a friend of mine saw the slippers and fell in love with their elfish shape. Result? 4 and an half skeins after, my friend had his new shining slippers, with a bell (that you can't see in the photo, sorry) and a sole, made out of a pair of soles that are commonly used in the shoes.
You can find this pattern on Ravelry, search for Peter Pan slippers. I've changed it a bit, just to have a longer tip.