senselock
If Barney succeeds, he gets to see Lily’s breasts (which Barney has been obsessed with since she became pregnant). If he fails, he must wear Marshall's "ducky tie" for an entire year.
Following the bet, Barney is forced to wear the tie in every episode for a significant portion of Season 7, even trying to bribe Marshall with large sums of cash to let him take it off before meeting a girlfriend's parents. Eventually, Marshall allows him to remove the tie in exchange for adding three more "slaps" to their ongoing Slap Bet. Where to Buy ducky tie buy
: Features handmade and unique variations, such as embroidered navy blue designs for a more "subtle" look. If Barney succeeds, he gets to see Lily’s
Because the tie became a iconic piece of TV memorabilia, replicas are widely available for fans and costume enthusiasts: : Offers various versions, including the New Company Rubber Ducky Necktie and the Lovacely Rubbery Duck Necktie Walmart : Carries the HIMYM Barney Stinson Costume Ducky Tie Eventually, Marshall allows him to remove the tie
Rubbery Duck Necktie - Barney's Ducky Tie 210255 - Amazon.com