I don't know how long they have been doing it but Boston Aqua Farms sells custom stamped ceramic frag discs. There is an initial setup fee of $20 to create the stamp and then it costs $.04 per plug to stamp them. I thought it would be a good idea to have the club logo/name stamp made and to get say 1000 of these plugs made. That way members could buy them and use them for all of their DBTC frags/coral. That way in the future people can just look on the disc and see that the coral came from the BAR DBTC program.