Sorry a bit late posting, but here it is anyway.
It was a long time ago (no not during the war), when we were kids. We made a large spider out of a tennis ball and pipe cleaners for legs, painted it black with big eyes. We susspened it over a high tree linewhich was over the footpath with fishing so it was not very noticeable. The ffot path was used by a lot of factory workers when they walked home. We hid behind some bushes about 100 feet away and waited. Everytime someone walked along we lowered the spider down in front of their faces. The reaction were brilliant, we had grown men running and women screaming. The spider was quickly pulled back into the tree. They did not stop to see that it was a hoax.
Small boys ay lol
There have been others since but that was the best.
Do believe in holiday romances?