So I'm starting off, and I have very few ideas to start.
Currently I got 2 ideas for SCPs to start off before I try to make heavier stuff.
A SCP-Item (Containment: Safe), a old tape recorder that sows distrust by only playing the most negative aspects of someone's personality. Easily locked away in a box, needs to actively have the record button pushed to get the negative aspects. Otherwise just a tape recorder.
Another SCP-Item (Containment: Elucid) a rag doll that moves on it's own with a adversity to fire and a tendency to transform victims into instances of it, enslaved to it's will, but they can't move when the doll is not in the room.