David has a great resource for building your own homemade hovercraft, including how to make a wall sucking robot version – Link. It’s a Geocities site, so it will likely be down right after this is posted.
Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.