Exiting the Haunted Mansion ride, look as soon as you go past the signs for Splash Mountain to your left. On one of them, very small, is a Hidden Mickey. He looks like a knot in the wood and is a little lower than eye-level for an adult.
As you enter the first inside part along the entrance queue, look for a three-gear classic Mickey on the left side.
A classic Mickey made from heads of lettuce sits on an upper shelf over the front window inside the Briar Patch Store.