The Great Stink was a machine invented in the 19th century to clean the streets of London. However, it failed to do so and instead created a foul odor that permeated the city.

The Hindenburg was a German airship that was designed to cross the Atlantic Ocean. However, it crashed in New Jersey in 1937, killing 36 people.

The Ouija Board was invented in the 19th century and was marketed as a way to communicate with spirits. However, it was later found to be a hoax and is now considered a parlor game.

The Universal Translator was a machine that was designed to translate languages. However, it failed to produce accurate results and was never released to the public.

The Flying Machine was an invention that was designed to help people fly. However, it failed to achieve its goal and was never able to take off.

Laetrile was a drug that was marketed as a cure for cancer. However, it was later found to be ineffective and was banned by the FDA.

The Night Vision Goggles were invented in the 20th century and were designed to help people see in the dark. However, they failed to produce satisfactory results and were never widely adopted.

The Dolphin Communicator was a device that was designed to help people communicate with dolphins. However, it failed to achieve its goal and was never able to establish communication with dolphins.

The Bathysphere was a device that was designed to help people travel underwater. However, it failed to achieve its goal and was never able to reach the depths of the ocean.

The Perpetual Motion Machine was a machine that was designed to generate perpetual motion. However, it failed to produce any useful results and was never able to generate energy without an external input.

The Saturn V Rocket was a rocket that was designed to help people travel to the moon. However, it failed to achieve its goal and was never able to launch a manned mission to the moon.

The Crystal Ball was a device that was designed to help people predict the future. However, it failed to produce accurate results and was never able to predict the future with any degree of accuracy.

The Arecibo Message was a message that was sent into space in an attempt to communicate with aliens. However, it failed to achieve its goal and was never received by any extraterrestrial beings.

AZT was a drug that was marketed as a cure for AIDS. However, it was later found to be ineffective and was never able to cure AIDS.

The Warp Drive was a fictional invention that was featured in the Star Trek franchise. It was designed to help people travel faster than the speed of light. However, it failed to achieve its goal and was never able to be created in real life.