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
(Please don't steal signs -- )