Totally Doctor Who

Stan's Cloning Copy Machine is a device owned by Stan Pines that can make paper copies as well as living copies of humans (even incomplete human body parts, which are animated). The copier's origin is unknown, even though it is known that Stan has made some repairs to it, though it's not mentioned if he tested it. It is a major plot device in "Double Dipper." On one side of the machine is a sign with the words "CAUTION," "DANGER," and "PELIGRO."

History
Stan first mentioned the copier to Dipper and Mabel when he wanted them to copy fliers for his party. They learn of its supernatural property when Dipper accidentally copies his arm, which then comes to life, before they kill it with a cup of Pitt Cola (an interesting aspect about the copies is they all seem to dissolve when doused in water or liquids). The Copier is next used by Dipper to make multiple copies of himself to aide in his courtship of Wendy. During one of these copies, a paper jam occurred, which resulted in a mutilated copy of Dipper known as Paper Jam Dipper.

Operation
The copy machine is used like any other normal copy machine. After the item (or person) in question has been scanned, a paper copy emerges from the end. If it is a person that has been copied, the paper quickly becomes three-dimensional. Even if only part of a living being was scanned (like Dipper's arm), it still functions like it was still attached to a body.