The Happy Plastics Family.
 
Here’s a video excerpt from the New York’s World Fair of 1964 production of “The Wonderful World of Chemistry” featuring a couple of actors rapping about the virtues of Dupont chemicals Valclene, Zerex, Zepel and Freon. This is just a small excerpt of a show that lasted 28 minutes and was performed 48 times a day!

The elaborate celebration of better living through chemistry took 203 actors, actresses, singers, dancers, hosts, hostesses, musicians, technicians, projectionists, stage hands, crew members and administrative staff to stage.