Somehow I was just looking right at the Dumbo without searching - maybe the Pixar movies have gotten me used to scanning the toys. I also noticed a puffer fish sort of toy on Lilo's shelf in the background. At least I think I did, it was in the background water color, but that is what it looked like to me. It made me think of the "Finding Nimo" reference in Monsters inc.
I didn't see the Mulan poster, but the Orlando post card really stood out (on Monsters Inc I saw the
disneyland posters right away, because I have some of them and recognize them - I don't know if I would've noticed Mulan).
Also, I didn't really notice it, but I saw on the net that the coffee house where Nani asks for a job is called "Kiki's Coffee House" an homage to Kiki's delivery service and director Miyazaki. Also, there is a Mulan Wok Eatery, didn't see that one either.
I also saw this on the net, but I can't verify: "When Lilo retrieves her doll and hugs it, it smiles. When Stitch hits his alien creator with a VW Beetle, the surfer on a poster looks shocked."
DR