WallCandy Arts has a line of temporary wall paper that’s new to me. It’s a vinyl peel-and-stick paper that can be easily put up, taken down, and even reused. It comes with a little squeegee to keep any bubbles out as well as an instruction video on their site. They’ve got great stripes and patterns that come in full (4 roll) or half (2 roll) kits. I’m bookmarking these for a future kid’s room.