Just find a plug that fits, it doesn't matter what it came off of.

Not all plugs that will fit are necessarily the same voltage power supply.
Granted for the purpose of this post after the power supply is cut off it doesn't matter.
But just to let folks know, just because a plug from a power supply will fit... say a rechargeable beard trimmer doesn't mean the correct voltage is going to be applied to the device. How do I know this you might ask? Well one fried battery, wiring, and switch in a rechargeable beard trimmer told me that 12 volt DC as not what it wanted. But the plug did fit. I think it was supposed to be 2.3v or some such but that's just a guess at this point. It was an eye opener for me because i thought the plug style and size was voltage specific for this very reason. Apparently that is not always so.

As i said this is just more for information purposes and doesn't really apply to the OP question but might save someone from destroying some device some day. Usually need a magnifying glass to read it but the input/output in both volts and amps or miliamps too I believe also is listed on about every power supply I'v ever seen. Might have to google the P/N of the device to see what it takes but sometimes there's a label on the device itself that tells it.