B’loonies Plastic Balloons

A pea-sized amount of liquid plastic was squeezed 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.  What do you remember about playing with B’loonies?