The giant argon breathing octopus is unlikely to be hiding the tiny parakeet.
My character is a mrlssi, a three foot tall bird.
I need a disguise. so I'm going in a 6' by 6' bubble containing a smaller bubble. I'm gonna sit in the little bubble, have a projector pressed up against the edge, and then fill the gap with argon.
The projector will project an image of a J'feh, a giant octopus.
...omg
Bleh!