This is a beaded wire tree I made.
I've made 3 others like it.
I add SMT LEDs, 0603 & 1206. Red blue & green
I use fine laquer coated wire for the positve leads so you can't really see the wires on the tree.
I maped all the lights to the port pins on a
Microchip PIC16F874 Microcontroller
There is a switch to make all the lights blink like a real tree,
Or they all be on too.
I had to PWM the blue LED's - flash them very fast,
.005 second on & off to dim them,
they were to bright as you can see in the pic below.

I use red felt to cover the brass frame and
there is a glass dome that goes over it.
But for Christmas time I'll leave it like this
Just scroll down....

More of the cabin here

My Christmas tree
Click for Bigger Pic
Cabin construction