The Wall Street Journal's Michael Judge offers an appreciation of the life-work of Charlie Douglass, inventor of the "Laff-Box":

"Sometimes called the Laugh Organ, the first Laff Box stood just over two feet tall and was operated something like an organ. Different buttons could be pressed to combine different types of laughter--belly laughs or chuckles, hoots or guffaws--and the operator could even choose the sex and age (man, women or child) of the laughter. Foot pedals were used to control the timing and duration of the laughter."

Judge says the Laff Box serves a useful social purpose and won't be going away anytime soon.