I've been thinking about taking concepts seen through history and using them as SCPs, by taking it and showing a horrifying reality.
Bonus points to people who can name where this idea came from.
The island is Elucid, simply dealt with by making sure all flight paths and ship sailing never go anywhere near it. The island itself seems normal but holds a old dilapedated theme park. The theme park has only one active entity in it, a smiling old man runs the park and will attempt to sell visitors either rides in the park, or fine animals.
Several skeletons of the Equidae species can be found lying about, testing would reveal they are under-fed, or that the bones are malformed as if something went wrong in development.
The Man himself seems friendly but is bitter and angry, complaining about the lack of suitable people in the foundation. His only request so far relates to "misbehaving youths".
This is honestly the only idea I have currently, and I'm kind of iffy on it. Any suggestions or alterations?
Edit: Should have added this earlier, thanks for Adnol pointing out that I hadn't properly explained why the island is anomalus.
Skeletons do not match DNA records of known Equidae and records of the island have been found, owner is unchanged over the past 100 years and no edible or safe food has been found on the island. Further records have shown transfiguration of humanoids into the Equidae and sale of said Equidae to people searching for mules. Malformed skeletons are from deaths that arouse during the transfiguration process deemed unsuccessful.