A black acrylic nail worn by Lady Gaga during her "Born This Way Ball" tour and designed by Aya Fukuda reportedly sold for $12,000. A member of the stage crew for her concert in Dublin, Ireland on Sept. 15, 2012 listed the item. The seller said in the listing: "As I was about to start work I noticed an object on the floor of the stage... when I picked it up, I saw it was an acrylic nail." (Plcollecta.com | Kevin Mazur/WireImage/Getty Images)