I came across this interesting and comprehensive website all about electrical plugs:

Museum of Plugs and Sockets: Overview

World map with links to photos and detailed descriptions of various types of domestic plugs and sockets.

Being in the electrical and electronics business and being a bit of a hoarder I have ended up with a collection of old electrical plugs.  I have had the idea of setting them up in a little private museum display.  I thought it might give me a good chat up line as well: “Hi darling, do you want to come up and see my plugs?” a bit like the classic “Want to come up and see my etchings?”.  Then I thought about it some more and realised that not only is it unlikely  that the chat up lines would work but also my partner Megan wouldn’t be impressed!