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The secret behind the magic is a magneticly triggered switch at the base of theThumb, which I placed inside a brass tube to protect the thin glass from breaking.
The brass works well because it doesn?t interfere with the magnetic force.
I found a small (3mm) ultrabright LED that fits neatly in the tip of the index finger.
and a small magnet in tip of second finger.
The battery pack is home made out of plastic, screws, two 3 V batteries, contacts, etc.
The light is switched on by pointing with index finger and bring second finger to the base of the thumb.
The brass works well because it doesn?t interfere with the magnetic force.
I found a small (3mm) ultrabright LED that fits neatly in the tip of the index finger.
and a small magnet in tip of second finger.
The battery pack is home made out of plastic, screws, two 3 V batteries, contacts, etc.
The light is switched on by pointing with index finger and bring second finger to the base of the thumb.
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Here is my announcement, and a pointer to the podcast where I mentioned it:
http://www.thinkythings.org/minimalistblog/blogentry.php?entryID=1396
and here is my brief writeup, including technical details and part numbers:
http://www.thinkythings.org/minimalistblog/blogentry.php?entryID=1398