I will come back with a more "spicy" SCP and instead of going for a Hostile SCP I might go for friendly one.
To quote vezaz, "Get away from "type of object" or "sort of creature" and instead start thinking about stories you want to tell. Start looking for moments in your everyday life that give you pause, that are unusual, or that make you go off into a daydream. Then think about bringing the reader to that same moment."
Think of the story before the object. Otherwise, you'll spend too much time thinking about the least important aspects of the draft. We have tons of generic monsters and objects here… what will make yours stand out is what sort of narrative you have for the reader to follow, or what emotions you evoke.
Some aspects people like to add into the SCP to give the reader more to think about include answers to questions like
- did this object ever have a greater significance before it was contained?
- was it ever special to someone?
- how was it initially discovered by the person who first owned it?
- why does it exist? Does it have a purpose?
- what might the intentions of the creator have been?
- how does it interact with others? Is it meant to do so that way?
Also, 173 is kind of dumb by today's standard and is not a good example. It's high-rated because it's oooooolld and most people toss an upvote to pay tribute to the cave painting that eventually led to the Renaissance works yadda yadda. Read the newer stuff. It's good. :)