His cell. It did have padded walls once, but it appears the previous occupants have had a go at it.
The bed and some more ripped padding.
A chair and the cell door.
An overhead shot of the cell with some cool lighting coming through the door.
The wall outside the cell.
A closeup of The Joker, laughing his head off, in his straight jacket in the corner of his cell.
The other side of the cell.
The rescue's arrived!
"Time to go Mr. J!"