There was an advert in a farmer's field on the edge of the M42.
A duck was the only thing you could make out whilst driving at speed and if you didn't realise that duo had a duck on their billboards, you would not have known who the advert related to.
(Who came up with the duck anyway)
Meanwhile, the two in the fields that relate to Thomsonfly inside 2 DME Rwy 33 tend to get noticed