We are actually the design team behind Grand Old Parr. Diageo own the brand and the easiest place to purchase a bottle is Japan or Asia Pacific markets, I understand it is readily available.... If you have the cash for the Limited Edition the bottle is well worth it.
You can have a look at the range (4 in total) below.
http://www.blackburnsdesign.com/web-.../old_parr.html
Cheers.
Andy