With thanks to The Laurel & Hardy Forum.
A recent thread discussed Laurel & Hardy's (lack of) politics. Perhaps them not having any clear political thoughts (as for the characters in the films, no clear thoughts) has led to newspapers and political parties using their image to lampoon politicians. Over 60 years after their last film they still get wheeled out to mock the politicians of the day (usually over economic failings).
The first two are from the US, the rest British politicians, from PM John Major onwards. Given what a good Stan Laurel George W. Bush makes I'm surprised that was the only one I could find.