“Fine Finny Fiends” Season 1, Episodes 33
Penguin puts the Dynamic Duo in a vacuum tank with a gigantic reversing bellows and an air indicator. The chamber is filled with balloons, which will burst as the air gets sucked out. By the time all the balloons are popped, they’ll be dead. Once the indicator gets to “no air at all,” Penguin has everyone leave, as they need to establish an alibi. Luckily, Batman had a bat-knife in his utility belt that allowed him to cut his bonds and take a vial of bat-oxygen to breathe, and then he got Robin get out once Penguin left.
I'm not 100% sure if I was drawn to recreating the colorful text or drawn to the prop by Julie Gregg as Finella, but I knew I didn't want a room size version of this, so I made it about 1:6 scale. I have a friend that bends Neon signs that made me actual glass tubes. She took the time to color the bulbs red for me, but I accidentally broke those.
Sorry my pictures are not great.

