In the Movie Haunted Mansion - when they arrive at the mansion and find the gate locked - the lock looks like a hidden mickey.
Check out the last two characters on the right side in this scene from Noah's boat. Its Mickey & Minnie!
When Nemo's father and Dory make the race, there are three jellyfish that form a classic hidden Mickey.
When Pumbaa is falling down the waterfall, you see a classic HM rock formation on the right cliff. About halfway through the Lion King 1 1/2 (2004) movie, Timon and Pumba fall down a waterfall. As the camera goes down with them, three rocks shaped as Mickey can be seen to the right of the waterfall.
As Lightning is heading to California, and Mack is falling asleep, they are approached by the 3 "teens". On the car that always sneezes, the second set of lights in his headlights creates a CM.