Kopi Luwak, also known as Civet coffee is coffee derived from Indonesia where the coffee berriespass through the digestive tract of the Asian Palm Civet.  Through this process the coffee beans remain intact and the proteins that are responsible for the bitter taste of coffee is broken down.  Kopi Luwak can range in price from $100-600 USD due to its rarity as only about 1000 lbs make it into the world market every year.