I found these awesome pictures on Haunted Mansion Backstage. Here is the description:

At Walt Disney World’s Haunted Mansion, they removed the classic Hitchhiking Ghosts mirror effect (where the ghosts follow you home) and replaced it with a 3D computer animated, interactive effect. Phineas, Ezra and Gus now have a little fun with you, the Doombuggy riders. They’ll switch your heads, or blow your heads up like balloons, or shine a lantern and make your heads disappear. It’s pretty impressive.

Haunted Mansion Head Removal Lantern

Haunted Mansion Head Switching

Haunted Mansion Roof Rider

Haunted Mansion Head Blowup

Backstage Photos: