Portable hole

In various works of fiction, such as cartoons and Dungeons & Dragons, a portable hole is a device that can be used to contravene the laws of physics. It generally resembles a circular cloth which is placed on a surface to create a hole. If placed on a wall, for example, the user could crawl through the hole and come out on the other side of the surface. In another instance, if the hole were to be placed on the ground, the user might be able to insert objects into it or allow others to fall in, as if he or she had dug a hole. The exact method in which the device works, including the depth (or length) of the hole, is largely dependent on the work of fiction.

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