We memorialize the great Presidents to preserve the memory of their greatness. We should memorialize Bush's absolute failure as President as warning to future generations.
If you could commission a monument to Bush's monumental badness as President what would it look like? Be creative. We want lots of people to be able to see it regularly, so maybe a statue or installation on the Mall isn't automatically the thing to do. How to communicate our complete contempt for this guy with permanence, ubitquity, clarity, and detail?