"Ignoramus25901" wrote in message
...
[...] 3. Custom make a real plug. I would not mind doing it, all it
requires
is a piece of insulating material of necessary diameter (would wood
work?), a template, and a drill press (which I have). Then I somehow
need to insert little tubes to go over the pins, seems like a lot of
hassle.

Just for the record, since no one else seems to have mentioned it:

No, using wood would be a bad idea. Wood is not such a good insulator when
damp.