I've recently discovered that quite a few eBay sellers offer produce, honey, nuts, and maple syrup from their own backyards (or nearby yards).
I'm seeing black walnuts, pecans, shagbark hickory nuts, fuyu persimmons, pineapple guavas, and homemade preserves on the site. Even when you factor in shipping, the prices seem reasonable. For example, a gallon of syrup goes for $46, including shipping (grade B, which has a deeper flavor than grade A).
I'm also intrigued by the huckleberry truffles I see from Montana.
I just bought some maple syrup that's cooked down over a wood fire. If anyone's interested, I'll let you know how it tastes.