Well ? What is that thing ?
A widget of course.
Unless it's a roach or summat?
You mean widget(tm). http://en.wikipedia.org/wiki/Widget_%28beer%29
It's a widget... just read...http://home.howstuffworks.com/question446.htmhttp://en.wikipedia.org/wiki/Widget_(beer)http://landingpage.guinness.com/Gate...HEHINT%3dGuest
Google "Guinness rocket widget".
One of many results:http://www.wired.com/culture/lifesty.../2001/12/49020
Can you use these bottles to put homebrew in?