I regularly get asked to include PVC balloons in my balloon drops. The problem here is the weight – PVC weighs considerably more than latex. My main concern is if they deflate after the net has been rigged – large sphere when deflated will fall like a brick.
Also the nets we use are really light weight and not designed for lifting heavy objects.
These PVC mics were light so I bent the rules and included them – but the below Woofers pushed things over the edge. I put a few in but really noticed the weight – so the remaining 50 were put back stage to throw out by hand.
PVC