I hate wall-warts

I have a Mini, a Stream, a cable modem and a router in (virtually) the same place. All need 12 volts so all need wall-warts. For 5 volt devices there are any number of USB power bricks with a single AC cord and multiple DC outputs. Has anyone ever seen or heard of such a device for 12 volt equipment? (DC cabling is another matter but no use looking for that, yet.)