A cute Badlander - seems a huge trend these past few years is to crush parked cars with giant objects, such as footballs, rugbyballs or giant blocks of ice. The latest one is this September installation from Gran parma Rugby Italy, the previous ones inside.
From the May 2004 article Football in Portugal, causes worldwide football fever, here's the Nike example.
Also, there's the giant block of ice from another Badlander post: "Stolen Jeans, the story of not stolen copy-concept".
I'm sure there are plenty more examples - can you recall any? Link them or post them in the comments!
Update: Swell! troymcclure just reminded me about the giant muffin in the comments. Boone Oakley, Obie award winner 2006.