Gainesville Coins still has a few sets of the special "East Meets West" 1/2 silver 2 Coin Sets that were made specially for the 2011 Beijing Coin Expo by the Perth Mint. These sets were special uncirculated early releases of the 2012 Silver Koala 1/2 oz coin and the 2012 Lunar Year of the Dragon 1/2 silver coin, in a special Coin Show package.
Both these coins are made from 999 fineness silver, and are mounted in a special "yin and yang" presentation card. These were limited to 2,888 sets, and are sold out at the Perth Mint. We still have a few sets left at Gainesville Coins, but once they're gone, they're gone!