Patchwork fic

Patchwork fic is a form of fanfiction where characters from many different interpretations of the same story franchise are melded together in one universe, or where characters from a different interpretation of a franchise are merged into a fanfiction writer's particularly chosen interpretation.

Empath: The Luckiest Smurf stories
The EMPATH: The Luckiest Smurf story series is an example of a patchwork fic, where characters from the Smurfs comic books, the Smurfs cartoon show, the Sony Pictures live-action Smurfs films, and the Smurfs PVC toy line are merged together into one universe, mostly based on the cartoon show interpretation.