I found a few more
Disneyland Trivia for those interested regarding Attractions:
Small World: Over in Disneyland's, on the Eiffel Tower, you'll see a doll which is a tribute to the original World's Fair attraction's doll designer, Imagineer Mary Blair.
On the Winnie the Pooh ride at Disneyland, if you turn around after you pass the scene where Pooh is pigging out on honey, you can see 3 animals that were from the Country Bear Jamboree (a tribute).
On POTC after the drops as you pass the skeletons on the beach wait till you almost hit the curve to the steering skeleton, and turn around, the rock formation that supports the standing skeleton with the seagull hat, forms the head of Goofy.
There is atleast one real skull in Pirates. In the 60s when the ride was being built plastics were not quite there yet to recreate real human bones so they improvised and used a couple real specimins. A couple have been replaced over the decades but that the one in the bed with the red cusion is still, to this day a real human skull.
ToonTown is full of all kinds of surprises. Step on all the manholes and open all the mailboxes. Everything is interactive.
If you are a Twilight Zone fan in the "video room" you can find the Fortune Telling Machine from the William Shatner episode, a Robot from another famous episode, glasses that represent the famous "I just want time to read" episode and more replicas of these famous episodes.
While in the queue for Star Tours, you'll hear a voice paging "Mr. Egroeg Sacul, Mr. Egroeg Sacul." which is George Lucas spelled backwards.