Toad Shrine

The Toad Shrine is a landmark that can be found in the 4th Floor of Princess Peach's Castle in some personalized copies of Super Mario 64. It is often described as a large statue of a Toad using the Metal Cap texture. It is usually on a top of a stand taken from the L Is Real 2401 statue model, with the plaque being able to be interacted with. It most commonly reads, "In memory of the 8th Toad king, Sir Toadsware The Great." This implies that it was made as a memorial for an old king of the Mushroom Kingdom. The Toad Shrine itself is usually part of a room on the 4th Floor instead of having it's own room, though some have said it has it's own room.

Theorizing
It is not entirely known why the Toad Shrine was removed, though some say it was paired with the removal of the 4th Floor. Others say it was removed due to the implication the Toad king referenced has died, making it a dark outlier from the rest of the game.