When you've got a damp and musty-smelling space in your home, this quick and eco-friendly DIY is the perfect thing for freshening your house. This air freshener costs hardly anything to put together and can be tucked in a cabinet or corner, and you get a sweet snack in the process. And this smell-buster does its job without the help of harsh chemicals or fake-smelling scents, which makes this eco DIY even better. Here's how to make one: