Gym Locker Mystery Box

The  is a limited-time premium consumable released on August 3, 2016 as part of the Springfield Games 2016 Event. Once purchased it unlocks one selected sport item.

They are Jockey Bart & Furious D, Tennis Marge, Ballet Ralph, Kung Fu Comic Book Guy, & Toreador Abe.

Trivia

 * A patch released on August 9, 2016, updated the payouts of all possible costumes to premium rate.