an LED light that changes colour is quiet expensive actualy
there is one made by panasonic
its called Multi-Color LED Chip
basicaly its one special LED light on a chip which controls the colour it glows
its applications is for the LCD screen of mobile phones
like those Panasonic phones that the LCD displays can change background colours between orange and green
this thing is very hard to find though
and most of all, hard to mod into an orb
go here to take a look at this the product
this one has 3 colours
orange, green, and blue
http://www.panasonic.co.jp/semicon/p...F/E00123AE.pdf
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another way to go at this is to build a little chip with an alternator timer
switches from one LED light to another
so this involves of having multiple LED lights on a little chip
you have to have the proper stuff to do this
cause this is one challenge to fit that chip onto the orb
and you two should stop laughing at people and wake up and realize how small your knowledge is in those puny brains