I use a mason jar and a recycled lid from a shaker top, like the one that comes on your Parmesan cheese.
Natural Carpet Freshner:
1 cup baking soda
15 drops Kokokahn lavender essential oil
15 drops Kokokahn peppermint essential oil
In a bowl add essential oil drops to baking soda. Stir well with a spoon. Sprinkle on carpet and leave on for 30 minutes. Vacuum up. Freshens the room and your vacuum.