This video features Godzilla playing the first level of Super Mario Brothers. I'm going with Godzilla is overkill in this setting. What have the mushroom guys got against his lightning breath attack? Apparently the mashup was done with a side scroller EMU application.
Ding ding ding! And we have another Darwin Award nominee in this video. The guy takes a stick (or sledge hammer) and hits a can of WD40. It explodes in his face. The question what did he think was going to happen when he hit it? You know those warning labels on the outside? Yeah.
The cat in this video plays the piano with one paw and a chin. It's hard to tell if the cat is actually interested in the sound or if there is just fish oil or some such on the keys.
Here is a video of a custom automated home defence USB BB gun web cam system. The guy in the video built the system and wrote the automation software. He demonstrates firing the BB gun inside his house and through the window.
In this video there is a two way highway with a manhole cover between the two lanes. It's raining and all of a sudden a huge geyser of water shoots up out of the manhole cover. One of the passing cars gets hit by the flying manhole cover. The geyser dies down and then near the end of the video it does it again.
Here's a custom project where a guy made a hot air balloon shaped like Darth Vader's head. The article about it is somewhat light on details but it does say they sent a 3D object file to the hot air balloon manufacturers and then made custom modifications once they received the final balloon.
This video has some excerpts from a show where a guy performs a short version of Star Wars and he plays all the characters. It's called the One Man Star Wars show.
The guy in this video takes one for the team by having a water balloon thrown at his head. A video is then recorded at around 1000 frames per second of the water balloon hitting him and spraying everywhere.