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The Cobra magbot pendulum

Started building a new magbot pendulum after 
my attempt to make a magbot spinner failed.
Parts that will be used for the stand:
-wooden base (from an old amplifier)
-copper pipe
-brass fittings
Parts used for the electronic circuit:
-coil(from a VCR)
-3300 uF and 1000uF cap
-100K resistors
-pn2222n and 2n3906 transistor
-red LED
-4100 type diode
-solar cell
Step 1:
I built the circuit according to the picture(a very good 
description 
in the junkbots book,so no need for me to repeat that here).
Normally I would test it first on the breadboard but in this 
case I took 
the chance that it would work,and it did.The coil was 
not soldered on yet.
Step 2:
I started soldering the pieces of copper pipe and brass 
fittings together 
to form the stand.
Step 3:
I Prepared the wooden base for the copper pipe.There was 
already one hole 
in the piece of wood but this was too big for the 12 mm pipe 
so I had to use a brass socket.Then I drilled the other hole 
with a flat 
wood bit.Between these holes I drilled a 22mm,shallower,hole 
for the coil to fit in so it is flush with the 
surface of the wood.I then 
drilled two small holes inside this hole for the ends 
of the coil to go through(these will run on the underside of 
the base to the rest of the circuit which will be housed inside an alumin(i)um box.

Step 4: The electronic circuit is housed in an aluminium case out of an old radio. I riveted a piece of copper and brass sheet metal on this to keep the co-bra theme going.A hole was drilled for the LED to go through,then the solar cell glued on top.A big brass screw was then used to fix the housing on the stand.
Step5: The pendulum was made from a piece of metal wire out of an old radio and two brass parts, super glued together.
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