The Story? There's no story, is there? Well, there's no real story. One day I just kinda asked George if I could have a different colored lightsaber. He asked me what color I wanted, so I said purple. He then asked me why. I said, "Well, I just want a different color because I am like high up on the Jedi Council and have a bit more power, second to Yoda, and I think I should have a different color." George said there are only two colors, but that he would think about it. When I came back later, he said he had something to show me, and there it was. George said it was just an experiment for the moment. But somehow or other, even though he had done it as an experiment, it was already on the Internet. People began wondering what it all meant--Mace has a purple lightsaber. It was nothing--I asked and he said okay.
Did you get to keep you lightsaber after filming was complete?
Yeah, I did. I asked George if I could keep my lightsaber and he said okay. I couldn't believe it. So I guess this means now people are going to try and break into my house to try and get my lightsaber. (Laughs) "We know where it is, let's get it, let's go in and just get it!" I can see fans now, lining up outside my house. Trust me, it's going to be locked up in a safe-deposit vault; it's not going to be at my house. I'll just own it.
Thats from Issue 80 March/April 2005 issue of the star wars insider.
If its totally true and not a bunch of misinformation propaganda then i guess that clears up that issue. Included the second question cause I thought it was cool...lucky bastard

-Darth Simon