I have a client looking for something in the 8x10 to 10x12 size for a yard alarm sign. Curious what the most cost effective substrate and stake options are in your opinion. He only wants roughly 25 or so this time around.
For the stakes use 1/2" square aluminum tubing. If you want to really make them look professional then cut the tips to 45 degrees and order caps for the top of the tube from Outwater. Attach the signs to the stakes with VHB tape.