Tomatoes ferment into a nice wine- if you're patient. At first it's kind of gaggy. Beet wine is great. I love rhubarb wine- that's my alltime favorite, I think.
So, nothing too "crazy" but maybe unusual. Dandelions, bananas, oranges, lemons, lilacs, grapefruits, blackberries, cherries, tomatoes, chokecherries, beets, mangoes, pineapples, etc. all make wonderful wine. Cranberry sauce is on my list- I have the cranberry sauce, I just have to devote the time to it. Some wines not to repeat (or even make after trying them): cabbage wine, onion wine, and that tomato wine I mentioned earlier.