Substituting Cream without Coconut
I've had good luck substituting cashew cream for heavy cream in soups and curries. I've had a lot of people actually prefer it! 

To make it, you follow the basic procedure for making nut milk, but skip most of the steps. Soak cashews in enough water to cover them for at least an hour or two, then puree in a blender until it's as smooth as you can get it. Add a little more water until it's the thickness of cream, throw in a pinch of salt, and you're done. 

It's good for things where you need the richness of cream, but don't want other characteristics like sweetness or tanginess that other substitutes might have. I've even seen it used as the base for cheesecakes, and vegan cheeses and cheese sauces.