The Biggest Bubblegum Ad Ever.

(click images, via) And there have been some big ones previously. To the above: a fun, but ultimately pretty useless stunt for Big Bloom bubblegum (unless it goes Internet "viral"). Created mostly to win ad awards, which it probably will. Ad agency: McCann Group, Bangkok. Related: In 2009, Hubba Bubba in Israel did a pretty funny big bubble bubblegum ad without actually showing a bubble.
update: unsurprisingly, it's unoriginal.