Puztoxs are a collection of 10 different colour and different cipher coins each one has a phrase which you can use to set or decipher a puzzle. A phrase of outstanding or black or even d=3 will point puztox owners to the correct cipher.
Although groundspeak are being funny on these at moment, we are seeding the black one online, so feel free to copy and forward on the picture to as many people as possible. The plan with the black one is to put a cache out using the name and your postcode. If we can get 500+ caches put using "outstanding in the field" then your postcode eg ox1 1aa then hopefully the reviewers and groundspeak will give in.