Looking a Gift Pen in the LED (with remaining good eye)

So found a package in my mailbox today.

And then I noticed that it was from Physics Today--if you don't know what that is, just read the title again.

I open it to find a pen that is lit up by a blue LED. Naturally, I find this terrifically cool. I've already taken it apart once.

Naturally, I've already come up with a few suggestions. First, give it a laser option. Heck, make it a high-powered laser. I want a pen that I can use to defend myself with both in close combat and at range.

Secondly, I want a stained glass sleeve so that it looks really, really cool...