Have any of you thought of putting a LED inside an Kensington Orbit? Well, I have but, I need to know how to do it.

It's got a clear blue ball and it's just begging to be lit up. There is enough room in it for one I just don't know how to get it in there. Help anyone?
Oh yeah, if you need pictures, tell me and I'll get them.
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" I couldn't tell if the streaker was a man or a woman because it had a bag on it's head." -- Yogi Berra