You can get a pair cheap on eBay--lots of elected officials selling theirs for a centavo or two.

The most uncontrollably I've ever laughed is at an episode of the tv show Frank's Place (alas, not available except for an occasional upload on YouTube). The series was so funny because it was so warm--tremendous respect for the integrity of its characters. Warm humor is as rare these days as political ideals.

The films here are uproarious choices, by the way.