We had another meeting yesterday to further discuss ideas. We all felt that the box variation idea was the strongest with the characters miming with a box of some description (it's open to interpretation).
The first character will do the 'trapped in the box' act and suffocate, the second character will find a small box, discover a bom in it and in an attempt to disarm it gets blown up and the last character will be late for the audition and mime a conversation with the narrator explain why he was late.
Prior to this meeting we did some sketches on the ideas we had:
And from the last sketch I did an animatic for the bomb idea:
We'll be showing the class our ideas tomorrow so hopefully that will go well.