The idea is to build a wooden Christmas tree that has little blinking LEDs to represent a string of lights.
To this end I set about researching a suitable circuit which I redesigned to make it absolutely minimal in terms of complexity. The wonderful tool I used to do this is Fritzing. Think of Fritzing as a CAD package for circuits. It's free and it's great, I cannot recommend it enough.
So here is the Fritzing sketch of my circuit
|Fritzing is just superb!|
|Sorry for the nasty mobile phone camera photo! :-/|
Next I cut the tree from 18mm MDF freehand on my bandsaw, painted it and glued it to a simple stand. You can see it here beside the prototype circuit for scale.
|Feels like Christmas already!|
The LEDs 'twinkle' like little Christmas tree lights. Ho-ho-ho! Just in time for Santa Claus!