More lasered skateboards

An earlier post showed some laser-created relief on skateboards. Here is a Flickr set of similar work. I think they have one of these rigs out at Nike. I have seen experiments with decorating various items: shoes, cellular phones, laptop computers.

I wonder if there have been any attempts to use it to enhance performance. What would be the optimum pattern and amout of material you could cut away and still maintain rigidity and strength?

Thanks for the heads up Craig.