I think it would be good if human knowledge and accounts of events were added to glass bottles by engraving or have stored in form by raised lettering, code or pictures. These will last longer than paper or film. Bottles go all over the world and although many get recycled the fate of many is to end up in land fill, where they could be retrieved by archaeologists of the future.

I noticed bbc’s iPM is looking at using Coca Cola distribution network to carry aid. This would add cost to their process and so would any engraving process or changing in molds of the large batches of bottles. But their is benefit of good image to Coca Cola.