Today I went to a friend's house. We made vanilla cupcakes, but we didn't have any milk so we used soymilk. We also didn't have any baking powder so we used baking soda, which isn't exactly the right substitue, but we were like,"Let's just put it in and see what happens." So that's what we did, and the cupcakes didn't turn out so good. But whatever. Trial and error.
Fun Fact: Here is the link of the recipe website: http://allrecipes.com/. There are lots of good recipes here. If you have all the right ingredients, I'm sure it'll turn out better than mine!