Create a stand of aspen or birch trees on the walls of your room or your kids' nursery using contact paper and acrylic paint. In theory, it's removable!
We started renting our house a couple of months before our son was born. My friend Humberto had painted a beautiful Sendak-esque tree on the walls of his son Horatio’s room. I wanted to have something similar but didn’t want to repaint when the landlady retires and comes back to California and we have to move out. So I looked for wall murals, and in the end decided to make my own.