@streondj Btw, with "CCTV plug" you mean an ordinary DC barrel? I.e. the cylindrical part of this one: http://www.fiveten-tech.com/UploadFiles/20111025155621344.jpg
In that case, yeah I have quite a lot of them, but with cables that are supposed to deal with 10A of current or more (at least 2.5mm²) fitting them to an ordinary, tiny DC barrel isn't optimal.

However, I do have several of those connectors (male and female) and have already started making circuit boards with 12V regulators, 12->5V DC-DC converters etc. will have such plugs. So every "cigarette adapter" plug will just lead to multiple further connectors for smaller connectors and possibly lower voltages. (DC plugs, USB outlets or whatever)