What's this can on tailpipe?

[Aus78Formula]

VZ V6 wagon

thumbnail_17365 by Aus78Formula, on Flickr

thumbnail_17415 by Aus78Formula, on Flickr

thumbnail_17417 by Aus78Formula, on Flickr

 

[gossie]

Looks like a flux capacitor.

 

[Voodoo_SV6]

Are you in Melbourne and is it either ticking or have an antenna attached?

RUN !!!

 

[figjam]

Possibly a sound or vibration deadener, filled with crystals.

 

[gossie]

You need to keep it topped up with this.

 

[stick3]

its... I E D ...take cover

 

[lmoengnr]

Blinker fluid container...

 

[gossie]

Very important that blinker fluid.

 

[VS 5.0]

The original blinker fluid

 

[Chuckmeister]

That is a spare can of sound...press the button and surprise your friends !!!