i) It would be nice to have had some fire breathing dragons, industrial mahem on the lines of Survival Research Labs ( see http://www.youtube.com/watch?v=L5JhQCJBYdQ ) or people juggling fire, preferably on unicycles or stilts. With masks. And a pony (better not set that alight). Yes, I know I am being unreasonable, but a weasel can dream.
ii) I had a nagging feeling that it should Mean Something. The end of spring. A comment on peak oil. On global warming. Culminating in David 'call me Dave' Cameron being burnt in the bamboo sculpture to appease the gods of global warming.
iii) There was a mad guy (of whom there is little evidence on the web, both cases being links to academic journals that you need to subscribe to) who wanted to think up non greco-latin names for technological things with, er, greco-latin names. The one that stuck in my mind was fireghost for electricity. With the electric street-lights turned off you can see why fireghost is a good name for electricity, a ghostly imitation of the real thing.
Also, overheard (and I am now obviously feeling slightly more self-conscious about my maunderings but here goes anyway)
Woman, answering a question I didn't hear: 'Oh no, we love them. We've tried. We've done the whole IVF thing.'
Less poignantly, mostly bald father to small child he was giving a piggy back to: 'Daddy's head isn't a drum.'