Here are some sources for unusual products. (If you’re on this list, and you’d like to send me samples, by all means…)

• D’artagnan (Newark, NJ) is a pretty well known supplier of packaged pàtés … in fact, my supermarket carries it for the holidays in the specialty cheese case … but I had no idea they also sell game meat for not completely outlandish prices.
• Cajun Grocer (Lafayette, LA) is your source for authentic cajun and Louisiana foods. I’ve bought from these guys before — andouille, boudin, chaurice. They also ship crawfish and turduckens.
• Exotic Meats (San Antonio, TX) seems to sell the hardcore game stuff — antelope, elk, wild boar, even yak. Their prices seem a little high to me, but then, I don’t really know the going price for a good hunk of yak.
• Lobel’s (New York, NY) is a high-end, high class butcher. They offer more than my grocery store butcher, but at prices that make me lose my appetite. I bought a single hanger steak from them more than 5 years ago, as part of a promotion, and I’m still getting email from them. If you order from them, you’ll get a friend for life, I think.