Crack this Crossword with the Surprising Solution to ‘Poppable Packing Material’

1. Protective packaging material
2. Made of plastic
3. Consists of small air-filled pockets
4. Used to cushion fragile items during shipping
5. Can be popped for stress relief
6. Popular since its invention in the 1960s
7. Has a distinctive popping sound
8. Also used for artistic and decorative purposes in some cases
9. Has variants such as anti-static bubble wrap for electronic items.