If the can were swaddled in bubble wrap, then enclosed in a spiffy carton cylinder, and that cylinder enclosed in a colorful helium-filled mylar balloon, and then thousands of those balloons sent aloft, we humans could roundly cheer a generous rainbow of over-packaged food being scattered to the four winds to feed the hungry wherever and whenever they find themselves in the company of a lost and punctured balloon. That's the ticket, more packaging!
I hate to say, but they don't look particularly appetising. I mean, what is that stuff spilling out of the third sandwich? because it sure as hell does not look like chicken, barbequed or not. Give me a good fresh Vegemite sandwich in cling wrap anyday! ;-)
However, I must admit, it's an interesting concept.