How to build simple crates.tutorial is for full sized real crates, but technique would be pretty much the same scales down in miniature!
Here's how to make a quick and easy air freshener with only rice and essential oils. Ingredients: Rice and Essential Oils. Add cup of rice, I used jasmine rice, but you can use whatever kind of rice you want.
Homemade Carpet Freshener (Baking Soda and Herbs)