File:A&A 3-5; Dez as Santa Claus.jpg

While Trish works at Shredder's Beach Club to arrange a Christmas children's charity party involving Austin and Ally, Dez volunteers to play Santa Claus, and shows her his inflatable Santa Suit, in the episode "Mix Ups & Mistletoes." Swiped from my iTunes copy, and can also be found on the Christmas Specials Wiki.