This is my glowpad, and this is my post on what I used as the top surface, it's very smooth for mouse pads- Click Me! The idea is simple a piece of lit plexi with another layer on top for the mouse surface. Here are the pics:
*In case you are wondering, the back of the mousepad is lined with foam, like the one that comes with motherboards in the box. And, the pics are taken with Uber's cam. Thanks man!