LED Scottish Independence sign.

Since the referendum for Scottish independence from the UK is fast approaching (18th September 2014) I thought I'd make myself a little LED "YES" sign for my window.
It uses 73 LEDs wired as 24 series circuits of 3 and a single LED on it's own all across a 12V supply.
I found a good high resolution image of the "YES" logo on Google and printed it out on a sheet of paper before taping it to the wooden backing panel from a certificate sized picture frame. I used a pen to put a dot on each point of the logo where there was a change in direction, then filled in the remainder of the logo with evenly spaced dots, adjusting their spacing to the detail required.
I then transferred the dots to the wood using a sharp point to mark through the paper, then drilled a 3mm hole on each transferred dot.
I then drew an outline around each group of LEDs I was wiring together on the back of the wood to help with the lead orientation as I inserted them.
The LEDs I used are 4.8mm straw-hat style wide viewing angle LEDs, and I pushed the leads through the holes and folded them back on the rear of the wood to hold them in place.
Then came the laborious task of cropping them, bending the leads across each other for soldering the series circuits, and adding in one resistor per circuit of LEDs. 270 ohm for the groups of three and 820 ohm for the single LED that didn't fit into a multiple.
Then I hooked up all the positive and negative connections with some insulated wire and added a 12V DC power supply to finish the sign.
Originally I was going to put a photo quality image on the wood before putting the LEDs on, but the detail in the LEDs is good enough that the logo stands out well on a plain black surface.
I sprayed the front black using standard spray paint before mounting the LEDs. The paint dries very quickly on the plain wood finish.