Instructions
Check local specialty shops. Most cities and some towns have large candy shops. These are a great places to find imported candy and chocolate. The clerks can also help you by making suggestions if you're unsure about what you're looking for. Gourmet chocolate shops are also a great place to find exotic chocolate.
Use a website such as World Wide Chocolate to find imported and unusual candy from around the world. Some websites such as Chocolate of the Month will send you a different chocolate bar every month.
Explore auction websites such as Ebay if you know specifically what you're looking for.
Find a local food auction. These are often expensive, but offer food that is extremely rare and difficult to find anywhere else. Check the websites for local auction houses or call ahead to see if there are any upcoming auctions for food products. Consider asking how likely you are to find rare candy bars at such an event.