one for the view of the interior. For the scene with Mike waiting inside the refrigeration truck, series creator Vince Gilligan wanted audiences to be able to see his breath so they would know how cold it was. To create that effect, the special effects crew designed a tiny plastic box with holes in it and placed dry ice inside, which Banks kept inside his mouth to create condensation when he exhaled. The idea was based on a similar device film director Frank Capra previously used with his actors in one of his films, which Gilligan read about in Capra's autobiography. The device worked, but had to be adjusted because it initially created an effect that looked more like cigarette smoke. Also for that scene, a bloody chunk of skin can be seen dangling from Mike's ear after he is shot. For that effect, special effects creators Greg Nicotero and Howard Berger, who are part of the company KNB Efx Group, made a mold of actor Jonathan Banks' ear and made an application for him to wear during filming. It was applied onto Banks by Breaking Bad make-up artists Corey Welk and Frieda Valenzuela. David Costabile briefly reprised his role as Gale Boetticher. When Hank first reveals to Walter that he is investigating Gale's murder, he shows him a DVD of Gale singing karaoke with Thai subtitles. The idea was that Gale participated in a karaoke booth in Thailand and kept the DVD as a souvenir; Breaking Bad music supervisor Thomas Golubic specifically found someone who could translate the song lyrics into Thai for the video. A similar joke was featured in the HBO comedy series Flight of the Conchords, which also features Costabile in a supporting role. Gilligan said he was not aware of that joke at the time, but watched it after conceiving of the Gale joke and researching karaoke. He said of it: "It was freaking hilarious. It's brilliant. And then I was thinking, 'Oh shit, should we even do this now, because how can it be as good as those guys?'" Gale sings the Peter Schilling song "Major Tom (Coming Home)", which Gilligan chose because he felt it was appropriate for the character: "It felt right. It's a bit cheesy, it's earnest, but it also kind of sticks in your head and it's fun." In the background of the karaoke performance, stock footage from the science-fiction