Laser Cut Blocks

Getting some designs laser cut and wondering what to do with the unused space? Why not fill it with something fun like Lego-compatible blocks?

Note: I have not confirmed these work. I just wanted to fill up some space on a heated build platform design I\'m hoping to send off to Ponoko shortly.

Update 2009/12/11: I uploaded the QCAD DXF (LCBlockFiller.20091210.dxf) and source SVG (LCBlockFiller.20091210.inkscape.svg) I sent off to Ponoko to figure out the service and exercise my QCAD+Inks