The LP Content Desk's Dead Card Cemetery.
Fe says: “That card might get zombied back into the backlog”.
Some cards just never seem to move up the backlog. They are always deprioritised to make way for something else. After a while it becomes apparent that they are never going to get prioritised, that there will always be something more important. But it can be hard to remove a story from the backlog – someone usually still holds that story close to their heart. It’s a good way of managing team members attachment to particular stories. It almost never happens – but if needed, a card can be brought back into play from the cemetery. It’s also a useful visual to show how many things that we think are really important at the time, actually become so unimportant that they never get done.
Spotted: Lonely Planet Content Desk
Agile Board Hacks 