When you make your prototyping PCB from us, we usually send you 10 pcs , now we offer this OPEN PCB activity to get 2 more PCBs at $0.1 cost.
If your design and boards is not Privacy/Private, and it's no matter that share with other people, you can try this OPEN PCB service. We will make 12 pcs of your design/board, and ship you 10 pcs as normal , but 2 addition additional random boards - and the rest 2 boards of your design will be shipped to another guys who also purchased this service. So we give a random rely of the 2 extract boards , we don't know what you will get and if it's useful for you, but we know its designer allow sharing it with you.
It's will be a funny activity and we hope you can make some new friends by the name,email or blog in the random board you get ...