I was told there’s an English lord who was so reviled that when he died they rolled a massive rock onto his grave lest he ever rise again (rumors that he dabbled in magic might have informed the decision).

That would be appropriate for Trump. Or similarly, bury him in a deep geologic repository (where we put our vitrified spent fissile fuel beneath signs warning THIS IS NOT A PLACE OF HONOR ) as a reminder of how we never want another person like him to exist.