Buy some new plant to your bedroom. Maybe you can find some plant which already exists in your home and will move it in your bedroom. It is a good variant as well. If you have enough free time you can make a plant. You can do it from cuttings of houseplants, your friend’s plants, and even other outdoor plants. If you want you can even grow a potato, pineapple, carrot and others in a pinch. Everything in your kitchen could be a container. You can use old teapots, cups, glass bowls, and baking dishes like containers for growing plants.