Well, this isn't exactly a repurposed item, but it's sewn & knit, so I think perfect to share (mod, feel free to delete if you disagree!). I just finished Kathryn Ivy's Summerlin, you knit a bodice then sew a skirt to it and it is BEYOND cute! I made this for my best friends daughter. I can't wait to get a picture of her in it!
There are more details on my Rav page here, or on my blog!