I remember about 16 years ago, I was working at Egghead Software. We had these really neat packaging peanuts that the company started using, rice puffs. These were a lot like synthetic peanuts but dissolved in water. I have not seen those since.

Now we are looking at a bacteria and sugar based grow to fit packaging. The idea is similar, the product goes right back to nature when you are done with it.

Follow the related link for more information.