Here are a selection of the House of Mouse’s Easter eggs that may have escaped your attention.

Image: YouTube/StephenWalking / via DisneyScreencaps

After much speculation, Disney recently confirmed that all of its Pixar movies do indeed share the same universe. But the tradition of referencing other House of Mouse movies actually extends way back to the more traditional hand-drawn animation days of the 1940s. Here’s a look at 20 that you may have missed over the years.

20. The Pizza Planet truck in every Pixar movie

Pizza Planet appears to be the number one fast food franchise in the Pixar world, as one of the company’s delivery vans appears in nearly all of the studio’s movies, from A Bug’s Life to Monsters University. It even shows up in a wood carving in medieval Scotland during Brave.

19. The Scrooge McDuck ad in A Goofy Movie

Scrooge McDuck is famous for being one of Disney’s richest characters. But what’s less well known is that he seems to have made part of that fortune from the cash-for-gold industry. Indeed, in A Goofy Movie, an advert posted by the feathered tycoon can be seen asking readers to send him their valuables for the typically tight-fisted sum of $20.

18. The Frozen ship in Big Hero 6

Big Hero 6 contains numerous references to Disney’s biggest hit of recent times. They include a “Wanted” poster and a statue that both bear an uncanny resemblance to the evil Hans. However, the sweetest nod to Frozen arrives in the shape of its ship, which can be seen pictured with its sails down in the San Fransokyo harbor.

17. The Incredibles send-up in Cars

Disney isn’t averse to the odd pun from time to time, as eagle-eyed viewers of Cars may already be aware. In one particular scene, for example, Radiator Springs’ drive-in movie theater can be seen advertising its current feature. The film in question is called The Incredimobiles, a reference, of course, to Pixar hit The Incredibles.

16. The multiple Disney send-ups in Zootopia

But the most pun-friendly Disney moment of all occurs in Zootopia. It comes during the scene in which Duke Weaselton can be seen selling knock-off DVDs. And the bootleg titles he’s trying to flog include Wrangled (Tangled), Wreck-It Rhino (Wreck-It-Ralph), Meowana (Moana), Giraffic (Gigantic), Floatzen 2 (Frozen) and Pig Hero 6 (Big Hero 6).

15. Aladdin’s magic carpet in several films

Aladdin’s magic carpet sure does get around. In fact, its latest appearance came in recent Disney hit Moana. And it’s also showed up in the background of hand-drawn animations The Hunchback of Notre-Dame and The Princess and The Frog.

14. The A113 code everywhere

Ever wondered why the code A113 appears to pop up regularly on screen? And not only in the Disney world but in various other studios’ TV shows and films as well? Well, it’s the number of the California Institute of the Arts classroom where many Disney animators honed their trade.

13. WALL-E’s name

It may seem pretty obvious once you learn of Walt Disney’s full birth name. But even the most ardent fans of the studio’s cutest robot trash compactor probably didn’t know that WALL-E is actually named in honor of the House of Mouse founder himself, Walter Elias Disney.

12. Sleeping Beauty’s spinning wheel in Tangled

2010 hit Tangled was inspired by Rapunzel, but it also contained a reference to another classic Brothers Grimm fairytale-turned-Disney adaptation. In one of the scenes featuring Rapunzel in her tower, there’s a clear background shot of Maleficent’s spinning wheel from Sleeping Beauty.

11. The Rapunzel book in The Princess and the Frog

Speaking of Rapunzel, the famously long-haired princess is also referenced in another recent Disney movie. And fittingly, it’s one that draws on the studio’s more traditional output. In The Princess and the Frog, a copy of a Rapunzel book can be seen in Charlotte’s room.

10. The Lady and the Tramp restaurant in Enchanted

The name of the restaurant that Giselle, Morgan and Robert visit in Enchanted references an iconic Disney scene. It’s called Bella Notte, which is the name of the tune that plays while The Lady and the Tramp’s central characters famously share a plate of spaghetti.

9. Snow White’s songwriters in Enchanted

Enchanted also makes a nod to one of the original Disney classics with the title of its law firm. However, the names Churchill, Harline and Smith probably don’t mean much to most viewers. It actually refers to the songwriters who penned the much-loved numbers in Snow White and the Seven Dwarfs.

8. Mrs. Potato Head reads A Bug’s Life

Ever wondered which story Mrs. Potato Head can be seen reading to the Toddle Tots in Toy Story 2? Well, if you look at the book closely enough you’ll see a character from the Pixar animation A Bug’s Life.

7. The Mulan references in Lilo and Stitch

There are numerous references to Mulan in Lilo and Stitch. These include a poster in Nani’s bedroom and the name of a Chinese restaurant, Mulan Wok. So it isn’t much of a surprise to learn that the directors of Lilo and Stitch previously worked on Mulan.

6. The movie posters in Meet the Robinsons

Posters for Disney movies both old and new also show up in Meet the Robinsons. During a baseball game scene, promos for classic The Jungle Book and the more recent Toy Story 2 can be seen pinned on a wall in the background.

5. The Up postcard in Toy Story 2

Andy’s room in Toy Story 3 is filled with Pixar references. Firstly, there’s a calendar featuring an image of Snot Rod from Cars. Then there’s the banner for Pixar University – a real-life training program for the studio’s employees. And most touching of all is a postcard from Up’s Carl and Ellie Fredricksen.

4. Yen Sid’s name in Fantasia

As with WALL-E, it seems blatantly obvious when you really think about it. But if you haven’t, you may not have realized yet that Yen Sid, the sorcerer from the “Sorcerer’s Apprentice” segment of Fantasia, is simply “Disney” spelled backwards.

3. Louis from The Princess and the Frog’s impression of Madam Mim

As well as planting characters from other Disney classics into its movies, the studio also likes to include the odd impression. For example, there’s the manner in which The Princess and the Frog’s Louis scrunches some swamp grass onto his head. It’s a carbon copy of the way Madam Mim pulls on her hair in The Sword and the Stone.

2. The Luxo Ball in Lilo and Stitch

The Luxo Ball has rolled its way into numerous Disney movies since its screen debut in Pixar short Luxo, Jr. The yellow ball, complete with red star and blue strip, can be seen in the Toy Story films. And, as shown above, it also appears in the background of Lilo and Stitch.

1. The Pixar crew references in Ratatouille

Ratatouille is stuffed with branded goods named in honor of various members of the Pixar staff. There are wines named after director Brad Bird (Chateau-Bird Champagne) and production designer Harley Jessup (Chateau-Jessup Pauillac Medoc), an olive oil after art director Dominique Louis (D. Louis) and a kitchen mixer after producer Brad Lewis (Bradfield).