Slight fluorescein thread drift here, but in the days of irresponsible student rag weeks in the mid 1950s dye markers were among the many ex-military marvels that could be bought for a song on Lisle Street in London. Our particular group of questers after academic excellence decided it would be a good idea to dump a cardboard coffin full of dye markers and Dreft washing powder into one of the fountains in Trafalgar Square, with the expected spectacular result. What we didn’t know was that the two fountains were interconnected. Even better….
Carlisle built a roundabout with a sunken centre and several footpaths merging at a fountain, in the 70's it used to be a multitude of colours as people dropped coloured dyes and bubble bath into it, sadly after several clean outs the council drained it, I always liked the red with bubbles on the surface myself
