Vintage neon and other merchandising signage can be quite expensive it found in working condition, however with a little effort you can reproduce your own version with an Arduino and a small amount of external circuitry.
One example of this is demonstrated by the "pscmpf", who uses Arduino-controlled solid-state relays to switch in and out bulbs which are fitted to a wooden arrow. The end result - once decorated appropriately - could fit into any 1950s scene or be used for all sorts of signage applications, and is demonstrated in the video below:If you're looking for a simple way to control many relays from your Arduino, without using up all your digital I/O pins - check out our RELAY8: driver shield:
So what is the RELAY8:? It's an Arduino shield that allows you to drive up to 8 relays from your Arduino using just 2 I/O pins with this shield. It communicates with your board using I2C, so you can even stack several shields together to drive 16, 24, or more outputs! Includes back-EMF protection and works with a wide range of relays. Perfect for home automation projects! For more information and to order, click here.