If you look at the engine straight on at the front, the 2 headlights and 1 "nose" light with the number of the train form a Hidden Mickey!
REPORTED: DP 28 MAR 98
Three of the gauges in the front of the train where the cast member sits make a Mickey.
REPORTED: Nellie 23 NOV 98
On the first hill of CASEY Jr., look at the house. The windmill of the house is in the shape of Mickey Mouse.
REPORTED: DHixson 24 MAY 97
CONFIRMED: anon 06 MAR 00
On Casey Jr. when you are looping back towards the patch work quilt and facing Cinderella's castle there are some houses near the pumpkin with high pointed roofs, and one has a blue facing with some "flowers" punched out. All are upside down, but the one in the middle is right side up and is a hidden Mickey.
REPORTED: Sabrina 20 JUL 00
It is confirmed that that is a Hidden Mickey as it was pointed out to me by my trainer while she taught me how to drive the train.
CONFIRMED: Ricky 08 JAN 01
Excellent sighting! Well concealed. Very satisfying when discovered! Confirmed!
CONFIRMED: Stephen Goodwin 08 JUL 02