The official home of the NS-RSPCPB!
Or in other words the Not So Royal Society for Prevention of Cruelty to PET Bottles.

These exotic creatures are often being bought, but once the drink they kindly provide has been finished they are discarded like rubbish, and few people take into consideration the mental damage this can cause them.

PET bottles have been bred by many large manufacturing companies in an attempt to make these creatures more recyclable. This is now an experience they enjoy, but much more than that they like acting as PETs to their owners.
The best thing to do if you buy a PET bottle is to care for it as best you can. Soon here there will be a guide to looking after PET bottles and suggestions to make their life much happier.

PET : Polyethylene Terephthalate, I think.