I did the same yesterday and saw nothing. Someone posted on FB about getting one on Wednesday IIRC. You can buy multiple badges for yourself and, if I'm not mistaken, two silver badges approximately equals one gold badge in terms of value and the silver is half the price of gold, so just buy silver badges if you just need more coins.
Cheers Mate! I'm running 4 events, so even with the Silver I couldnt spend all the coins I got. But I really wanted the shirt, swag bag and other goodies.
Go to the blog. Select the top blog message. Scroll down through the message to get the link for Buy a Badge. They are not apparent if you click Badge Registration from the main site. Direct link is http://garycon.com/shop/