Tuf tuf club
The Tuf Tuf Club are a Dutch Group of driving fanatics whose purpose in life is to remove the speed cameras of the Netherlands using entertaining methods. They have been made famous by Jeremy Clarkson on BBC2's QI after he referred to a stunt in which a hole in the back of a speed camera was filled with expanding foam, which expanded, subsequently causing the camera to fly apart.
The Tuf Tuf Club derives it's name from an episode of the popular Suske & Wiske comics. Alas the Tuf-Tuf Club site has gone down (www.tuf-tufclub.com/english) Never the less there are some excellent examples of this kind of handiwork along the roadsides of the south east.