At a local building site I noticed a remnant scrap of a strip of spikes that are used to prevent pigeons sitting on the windowsills of commercial properties. When I asked the builder about it he let me have it for nothing.
I cut off a short section of four of the plastic spikes and attached them on top of my tricolour with Sikaflex 291i sealant, then remounted the tricolour to the top of the mast. The spikes are well clear of the windvane and antenna, and there’s no more fouling of the tricolour by gulls or crows. I have had it in place for several years now and have never had to clean the tricolour since installation.
Willem Bijl, Chelmsford, Essex

We pay at least £30 for every practical project published in PBO – Send us yours!