Enter some sticks, hot glue, and twine-- all things I have on hand in my craft room and outside on the ground.
I measured the blank wall I have in the hallway and broke my first stick to that length. Then I worked my way up, laying the sticks out on the driveway, making sure my sticks laid pretty flush to the ground (and thus the wall so I wouldn't inadvertently skewer someone). I little hot glue and then some twine for extra security.
I love it. Now my mom wants one. I love almost free crafts!