Bit gash this, but if you grind off the locating tab on the 110v plug, and off the blue socket on the caravan, the yellow plugs will mate with the blue ones. It will still only fit in one way because the earth pin is bigger. Will save you having to change plugs. They are no different apart from colour.
i'm a yorkshire man and even some efforts like that are too muchi bet you dry the soap when you're finished with it and you save old teabags (yorkshire tea of course!)
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