I don’t know if it is just me, but I was quite old before I realised that cobwebs weren’t actually the stereotypical webs of illustrated children’s books like Charlotte’s Web. Different sorts of spiders make webs of all kinds of shape. The “cob” of cobweb points to a 3D shape similar to the type og bread rolls called cobs in some parts of the country, to cobblestones, or to the knobs on the base of the beaks of male swans, cobs.
These two webs are small cobwebs on a low bush in West Park. I noticed them because they had caught a very heavy dew.