Samaritan Snare was a reflection of modern society. With that in mind, portly actors were hired in order to give the impression of Tweedledum and Tweedledee from Lewis Carroll's "Through the Looking-Glass". Makeup supervisor Michael Westmore then created a prosthetic design for the actors, intending to make them look "whimsical". Appliances were created for their cheeks, foreheads and the tip of the actor's noses. A further addition was the eyebrows, as Westmore wanted them to look permanently sad. The final step in the makeup process was the creation of sets of false upper teeth, which while Westmore suggested was not immediately noticeable
Super Bowl XLIX halftime show were not given rigorous choreography but instead told to mimic Perry's moves. In an interview with "The Hollywood Reporter", Durell said that the Left Shark's performance was intentional, stating their objectives were to "perform Katy's trademark moves to the 'Teenage Dream' chorus, which they both did perfectly" and "have loads of fun, and bring to life these characters in a cartoon manner, giving them a Tweedledee/Tweedledum-type persona". Super Bowl halftime show director Hamish Hamilton later said that the Left Shark performance was inspired by a Scissor Sisters performance in the 2005 Brit Awards, where the group played "Take Your Mama"