Pick something nobody notices and make it the whole point.
Not the centerpiece. The thing in the background. The detail everyone walks past.
The corner of a room that never gets cleaned
The sound that's always there but never mentioned
The crack in the sidewalk everyone steps over
The last line of a page nobody finishes
Write it, draw it, paint it, photograph it, collage it. However it wants to come out.
Drop it in the comments!