This one has a central basis and a few side-inspirations:
- Obviously, the Titanic was the central inspiration. Funny thing is, I've been mulling over a vaguely Titanic-themed idea for a while now, but as a story. It was supposed to be this story about some random guy tasked with delivering a strange object to some strange Foundation, and how excited he was that they were paying for the trip, only revealing at the end that the ship is the Titanic and the Strange Object is an SCP that attracts ice to it. Hell, if this SCP tanks, I might just still write it.
- Another inspiration was a book I read long ago, as a kid. It involved characters crossing dimensions/locations through a process that one of the users compares to being a 2D cartoon character getting past a solid line by lifting themselves off the page, hopping over the line in 3D, and then falling back into 2D mode. The bit I most remember is that the above analogy wasn't perfect, and one (or more) characters had everything on them flipped/mirrored at times. That, most of all, tied into this final SCP, with a lot of mirroring and flipping to give a sense of something weird happened here.
- This one is the least important, but it still sticks out the most in my writing this SCP. There was an in-universe special feature related to the first Blair Witch film in which one of the Talking Heads discusses at length how impossible it was to have found the Supposedly Lost Footage that made up the movie where it was. X Y and Z make it impossible, but that's where it was found. I really wanted to do that with both the SCP itself (it wasn't there, but now it is, and it's always been there given the wear-and-tear) and the final safe (it's there, it's been there for over 100 years, its covered in 100 years of disrepair, but it's a cira-2015 safe). I'll be honest, this part of it was most exciting for me as a SCP writer, because I tend to write from a Everything-Plotted-Out perspective and I remove things to give the reader stuff to ponder over. This time, I intentionally wrote things without an explanation in my head.