This 46 foot long inflatable index finger once loomed over Germany's Nuremberg Airport. According to the caption of this photo, In 1971, this finger was installed as a way to remind pilots which way to take off.
A giant finger telling airplanes which way to fly seems like something out of a cartoon universe. I'd be quite worried if I were in a plane with a pilot who needed this sculpture in order to remember where to go.
I'm sure people had many nsfw jokes to make about this particular inflatable. I can imagine many silly photos people must have taken while standing next to it.