Meet Sidney the Kidney -- all four of them! Not sure which one came first, but we have, from left to right, Sidney the Kidney, who promotes kidney awareness through sponsored walks throughout the US; Sydney the Kidney, a mascot designed by a Maryland middle school student to promote organ donation at the Maryland Vehicle Administration along with Donate Life. Let's not forget UK-based pal Sidney the Kidney, who tells kids about the ins and outs of organ donation for the National Health Services blood and transplant unit, or, last but not least, Sydney the Kidney, who travels about promoting organ awareness for the National Kidney Foundation and Council of Advanced Practitioners.