The advert, which featured flashing images, was shown on channels including Sky, ITV and UK Gold.

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We filmed 15 vehicles including a bus, a post van and numerous cars which, according to a flashing speed warning sign, were breaking the limit.

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Souvenir shops tend to have shelves of Obama items, including a "dashboard doll" showing a bare-chested Obama carrying a surfboard and flashing Hawaii's trademark "shaka" sign.

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