Random Most Satisfying Easter Eggs in Zootopia (23 items)

(#4) The Music On Judy's iPod
Blink and you'll miss it, but the music on Judy's iPod looks pretty good. She's got songs by the Fur Fighters, Fleetwood Yak, and The Beagles. But the artist she ends up listening to, Gazelle (played by Shakira), is an Easter egg wrapped inside of an Easter egg, with her Disney-referencing titles like "Part of Your Wool," "Ara-bunny Nights," and, "Let it Goat."
(#21) Where Was Fudgie The Whale?

One of the quickest/weirdest shots in Zootopia happens when two elephants are eating at Caravanilla Ice Cream, which is a reference to the eastern seaboard ice cream chain Carvels. Comedian Patton Oswald references the brand often in his stand-up routines.
(#13) Emmet Otterton Shares A Name With A Famous Christmas Special

The missing otter that Judy is trying to find throughout the film, Emmet Otterton, is named after a Jim Henson Christmas special from the '70s called Emmet Otter’s Jug-Band Christmas - and yes it was exactly as awesome as it sounds.
(#2) Even Animals Can't Resist The Charms Of Frozen
One of the most satisfying Easter eggs comes in the form of two young elephants who are dressed as Princess Anna and Queen Elsa from Frozen while they ice skate with their dad in Tundra Town.
(#7) Why Is No One Rubbing That Lamp?
When Judy and Nick pay a visit to a "naturalist club" run by Yax (voiced by Tommy Chong) to get some insight on their case, one of the items sitting outside of his office is a lamp last seen in Aladdin.
(#20) Thigmotaxis
During the Duke Weaselton chase scene, we see a sign for the Thigmo-Taxis taxi company. Thigmotaxis is actually a biology term that means the motion or orientation of an organism in response to a touch stimulus. Which is sort of like what a taxi does, maybe? Is there a biologist in the house?