This dining table was made from an orange road sign with black flagman logo on it.
I got the sign from a junkyard I used to know, north of Phoenix. It was free. I highly recommend "free", in general, as it will keep the cost of this project down, as well as (hopefully) recycle something someone else thought was trash. All the wood I used was free too, cheap plywood cut in strips, old two-by-fours, and other assorted, mangled, painted, varnished, and peeling scraps from around the shop I worked in. The only new materials are fasteners. Most of my work is with "trash", and in the spirit of freegans and readymakers everywhere, I try to spend as little money as possible. In addition to saving me some trouble, saving money is often a simple way to save the environment -- use less crap. The peeling paint and dings in the sign become an integral part of the aesthetic.
I didn't measure anything except to hold the wood up to the sign or wherever I was trying to attach it, so all directions in here are going to exclude dimensions. I assume the sign you find won't be the same exact size, or the use for your table might be different, etc., so consider these instructions more of a schematic to work out your own design on top of.
All photos by my collaborator, Alfonso Elia.
Step 1: Table Acquisition
Go to a junkyard and ask if they have any signs. Most decent-sized ones will have at least a few. Do not get one that is bent, even slightly, because they are usually made from pretty thick aluminum that is too resilient to bang dents out of. You can also find new and used signs on the internet and eBay.
(Please don't steal signs -- )