Walt Disney died in 1966 and the last the ideas and projects he had for Disneyland attractions lasted until 1977.
Pirates of the Caribbean opened the next year after Walt died and was pretty much all created by him.
The Haunted Mansion was only half created by Walt Disney, opening 3 years after his death.
Country Bear Jamboree and Space Mountain were both ideas created by Walt.
Besides Carousel of Progress, were all the new attractions and rennovations in the New 1967 Tomorrowland (Rocket Jets, Circle-Vision360, Adventure thru Inner Space, Coca-Cola Terrace Stage, Flight to the Moon, PeopleMover, Tomorrowland Stage) alll created entirely by Walt Disney?