Fart jokes as well as pranks are always more on the crude side of things, but this does not mean that they are any less desirable or fun, as it has always managed to stand the test of time. Enter the $3.99 Fart Horn, where it is actually a whistle with a twist. Whenever you blow into the Fart Horn, do not expect the shrill sound of a whistle, but rather, it will result in a loud and sloppy sounding fart that is certainly disgusting to the ears of some. Basically, you can more or less call this a Whoopie Cushion that comes in whistle form. Of course, if you want to clear an elevator quickly, just give this whistle a blow and watch everyone get off at the next stop immediately, and it would work better if it were accompanied by a fart spray.