Shire Post Mint has been working on making some Game of Thrones replica coins. Right now you can go to their website and buy a ton of coins based on George R.R. Martin's A Song of Ice and Fire series, ranging from The Silver Stag of Winterfell, to The Silver Kraken of Balon Greyjoy, to The Iron Coin of The Faceless Man, and so much more.
Shire Post Mint has successfully reached their Kickstarter goal of $10,500. So we can be expecting some real 22k gold Golden Dragon coins to be officially released at WorldCon in San Antonio, Texas, at the end of August.
If you want to head over to their Kickstarter page and pledge some money to the awesome cause.