There was a real Chadwick's in Lexington, Mass, near the Waltham border. They really did serve an ice cream dish called the "Belly Buster", which you would get for free if you ate the whole thing. Both Amy Poehler and Rachel Dratch worked there as a teenagers. Chadwicks closed sometime in the late 90s or early 2000s. See more
If you want, you can go up to the counter and get some free samples.
They'll let me taste iced creams for free? Like that man whose hat offered free mustache rides?
Yes, and again, please stop bringing that up.