In case you bought your EtherDream 4 Laser DAC as a separate PCB and don't have a case for it, I threw something together. It's a little rough around edges (figuratively) but it gets the job done.

The PCB slides inside the case nice and snug.

The uploaded model has some extra features the print in the photos does not. Like the text and better (self threading) holes for the M3 screws.