Super Elastic Bubble Plastic

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Super Elastic Bubble Plastic was the Wham-O brand name for a 1960s, 1970s and 1980s children's toy consisting of a tube of a viscous plastic substance and a thin straw used to blow semi-solid bubbles. A pea-sized amount of liquid plastic was squirted from the tube and made into a tiny ball. One end of the straw was then inserted into the ball, and the user would blow into the other end, inflating the plastic into a bubble. The bubble could then be removed from the straw by pinching the hole closed, sealing the air inside.

The size of each bubble depended on the amount of plastic used. Roughly the consistency of bubblegum, the bubbles formed were much more durable than simple soap bubbles, and could be gently manipulated to make different shapes, and stacked to make simple figures such as snowmen. Much less durable than actual balloons, however, they could pop easily if overinflated or handled with too much force.

Chemically, the bubbles contained polyvinyl acetate dissolved in acetone, with plastic fortifiers added. The acetone evaporated upon bubble inflation leaving behind a solid plastic film. [1]

Besides the obvious potential for messes when letting children play with liquid plastic, the substance also emitted noxious fumes. The fumes could become concentrated inside the straw, so users had to be careful never to inhale through the straw while inflating their balloons. Because of these problems, Super Elastic Bubble Plastic was eventually taken off the market. Other similar brands remain available in certain countries, such as Malaysia, Mexico, and Germany.