Yet another app nobody needs! ;)
As default it has two buttons.
One plays the Sad Trombone,
the other plays the drums and hi-hat.
There are more sounds like fart, burb, baby crying, applause and more. These can be enabled in the settings-menu.
It can be set to play at full volume, and goes back to system-settings afterwards.
It can be set to keep the screen on, or not.