How I Met Your Mother has had some legen… wait for it… dary guest stars – especially in the show’s third season, which featured Britney Spears, James Van der Beek, Enrique Iglesias and Mandy Moore. In the third-season premiere, “Wait For It,” Ted (Josh Radnor) goes out for a wild night with Barney (Neil Patrick Harris) and meets bad girl Amy (played by Mandy Moore), who eventually takes Ted to the tattoo parlor where he receives the infamous butterfly tattoo on his lower back (which leads him to Stella (Sarah Chalke) to have it removed). VIP Fan Auctions is now giving fans of the series an opportunity to claim a piece of this historic episode – the shirt and skirt worn on-screen by Mandy Moore (above) is available to whoever casts the winning bid. Click here for photos and more information – and get in on the bidding today!