Sick of Beige Universal Mounting Plate

I have started designing my PCB's using Dangerous Prototypes [Sick of Beige](http://dangerousprototypes.com/docs/Sick_of_Beige_standard_PCB_sizes_v1.0) standard sizes in mind. And while I am testing them, i don't particularly like them floating around my bench, So i made up this object that I can cut out on my laser cutter. If you have a 3d printer, you can also use the extruded version and print it out. it is 3mm thick, which should be plenty. All you'll need are 4 M3 standoffs and 8 M3 screws