(CNN) — Next time you look up as a plane travels overhead, there's a chance it could be more eye-catching than another aluminum tube with generic corporate branding.
Aircraft liveries -- to give the plane's exterior paint job its correct technical term -- are getting ever more creative. By turns amusing, beautiful, or even downright odd, they stand out in a sea of uniformity.
It's no surprise that national carriers reflect some of the elements their countries are most famous for, while independent and low-cost airlines seem to revel in the unexpected.
Here are some of the coolest-looking aircraft that have criss-crossed the skies over the years.
Alaska Airlines -- 'The Incredibles'
Yep, that's Elastigirl on an "Incredibles 2"-themed plane.
Courtesy Alaska Airlines
Pop culture tie-ins are one of the most common reasons for airlines to repaint their planes. Alaska Airlines got into the spirit in 2018 ahead of the release of "Incredibles 2."
Fans will spot Mr. Incredible, Elastigirl, and the rest of the family on the plane alongside the famous Alaska Airlines Eskimo, a mainstay of the airline's liveries.
Air New Zealand -- 'Lord of the Rings'
It's possible to watch "Lord of the Rings" inside a LOTR plane.
Air New Zealand/Getty Images
After the "Lord of the Rings" trilogy was filmed in New Zealand, tourists quickly followed to pay homage to the Oscar-winning movies.
The country's national carrier got in on the fun as well, with LOTR-branded Air New Zealand planes and an in-flight safety video with actors from the movies in character.
China Eastern Airlines -- 'Toy Story'
You can go to infinity and beyond on this "Toy Story" jet.
Courtesy Shanghai Disney Resort
Buzz, Woody, Jessie and the rest of the characters from "Toy Story" adorn both the inside and outside of this China Eastern Airlines plane created in partnership with Pixar.
The plane only flies routes to Shanghai, where there's a Toy Story Land at Shanghai Disneyland. No detail is too small -- menus, headphones, seats and even cutlery on board has nods to the much-loved characters, and travelers get to keep their special "Toy Story"-themed boarding pass.
KLM -- Delft
KLM's Delftware plane was very proudly Dutch.
Delft, in the Netherlands, is home to the famous blue-and-white pottery of the same name. Dutch national airline KLM painted some of its planes in the same classic pattern as an homage.
Nok Air - Birds
Nok Air's bird planes helped get attention for a young airline.
Low-cost Thai carrier Nok decided to have fun with its planes and paint them as colorful birds.
Not only are the bright planes fun to spot from the ground, it also provides a response to that old "is it a bird or a plane?" joke. (Both. It's both.)
Kulula -- Flying 101
Kulula's bright green plane definitely catches eyes.
Low-cost South African carrier Kulula was a contender for the most creative livery design a few years back with its Flying 101 design highlighting different parts of the plane.
On the exterior of the cockpit, an arrow points up saying "Big cheese -- Captain, My Captain!"
The location of the "black box" flight data recorder is even highlighted with a big arrow. If there's a better or more striking way to understand what's underneath the skin of a plane, we've yet to see it.
Brussels Airlines -- Tintin
The Brussels Airlines A320 features one of Belgium's most famous exports.
courtesy DOUMENJOU Alexandre/MasterFilms
Cartoon characters are a consistently popular theme on aircraft liveries, here demonstrated by Brussels Airlines' celebration of one of Belgium's most famous sons, Tintin.
The plane takes the form of a 37-meter shark submarine from the Tintin adventure "Red Rackham's Treasure," while Tintin and his faithful companion, the wire fox terrier Snowy -- or Milou in the original French -- also make an appearance.
You can even read the books inflight in English, French and Dutch.
Icelandair -- Northern Lights
Going to Iceland to see the Northern Lights? This Icelandair plane will get you in the mood.
As an example of celebrating the splendor of the natural world, few can match Icelandair's Boeing 757 Hekla Aurora, which depicts the spectacular Northern Lights frequently seen in Iceland's skies.
Not only is it a feast for the eyes seen from the tarmac or up in the air, the cabin lighting also mimics the famous natural phenomena. Lucky passengers may even see the real thing from their window seat.
Eva Air -- Gudetama
EVA Air's cute Gudetama theme is completed with pillows and headrest covers.
courtesy EVA Air
Another cartoon comes in the form of the hugely popular Sanrio character Gudetama, which graces an Eva Air plane on the Taipei to Tokyo route.
Gudetama is a lazy, morose egg yolk, usually found resting underneath a bacon blanket. Fittingly, the Taiwanese plane's interior is decked out in egg-yolk yellow, with everything from cups to playing cards to pillows featuring the beloved little character.
Sanrio's most famous character, Hello Kitty, is also no stranger to travel. The feline's face and trademark pink color adorns an Eva plane of her own as well as a bullet train in Japan and a lounge in Taipei Airport.
Azores Airlines -- Whale
Azores Airlines takes the term "tail" very literally.
courtesy Azores Airlines
The Azores, a Portuguese territory in the Atlantic, is unsurprisingly home to Azores Airlines. It celebrated the islands' status as a whale sanctuary by depicting a blue sperm whale on the livery of one of its Airbus A330 aircraft.
The airline logo is also a whale tail -- aptly displayed on the tail of the plane.
The livery was launched to coincide with the airline rebranding to Azores Airlines, after previously being known as SATA International.
Qatar Airways -- Barcelona
Football fans will love this Qatar Airways plane.
courtesy qatar airways
Qatar Airways has run a sponsorship deal with F.C. Barcelona since 2013 and in 2014 launched a special livery on their Boeing 777 featuring Barça's flag and club emblem with the tagline, "A team that unites the world."
A natty shading element on the flag design appears to make it move during takeoff, while the Barça scarlet and blue, or "Blaugrana" as it's known in Catalan, covers half the plane.
ANA -- 'Star Wars'
Arguably the world's most popular robot, R2-D2 made his appearance on an ANA Dreamliner in 2015.
The droid was the first of three "Star Wars" characters to be unveiled on an eye-catching mini fleet, with C-3PO and BB-8 also receiving the honor from Japan's All Nippon Airways.
Jetstar -- Singaporeans
Thanks to this special JetStar livery, regular people can say they've had their faces on airplanes.
To mark Singapore's 50th National Day in 2015, Jetstar revealed a one-of-a-kind livery featuring the faces of 50 everyday Singaporeans.
Local designer Michael Ng chose a bird commonly found in Singapore, the black-naped oriole, and added the faces of "unsung heroes" who won the honor having been nominated by friends, family and the public.
The pop art-style makeover included local legends such as a woman who gave up her corporate job to work with disadvantaged communities in Cambodia.
Virgin Atlantic -- Where's Waldo?
Where's Waldo? In the sky.
courtesy Virgin Atlantic
Virgin boss Richard Branson dressed up as Waldo of "Where's Waldo?" (also known as "Where's Wally?" depending what part of the world you're in) fame to celebrate the unveiling of a Boeing 747 with the character hidden in the livery.
The livery was to celebrate the 25th anniversary of the popular bespectacled children's character.
You'd need to be eagle-eyed to spot him, however, as he was a typically discreet addition to the design.
Papua New Guinea -- AIR
PNG Air's livery reflects its nation's heritage and culture in an artistic way.
courtesy PNG Air
Papua New Guinea's seven million residents speak an incredible 800 different languages between them. The Southeast Asian nation also relies on air transport more heavily than most countries, given the remote and extremely rugged terrain.
PNG Air's new livery on its fleet of new ATR 72-600 aircraft was designed to reflect the nation's diversity and traditional icons from around the country were incorporated on the unusual and striking design.
This contemporary depiction of ancient patterns was rendered in just three colors.
BA -- Fashion
Model Georgia May Jagger poses with a British Airways fashion-themed plane.
courtesy British Airways
Style of a different kind was unveiled in a bespoke British Airways livery by celebrated Chinese fashion designer Masha Ma.
Deployed on a Boeing 777-200, the design depicted a bamboo and a rose, marking an east-meets-west fusion of symbols and artistic techniques, namely impressionistic and Chinese ink-and-wash painting.
The design took almost 2,500 hours to complete and involved 186 stencils.
Westjet -- Frozen
Unlike most frozen planes, this "Frozen" plane won't need de-icing.
Next time you want to paint Anna, Elsa and Olaf from "Frozen" on your jet, you'll need 170 gallons of paint in 23 different colors. Canadian airline Westjet teamed up with Disney and bought in painters from Canada, the United States and Germany to bring the kid-friendly livery to life.
The theme extended to the interior, with a cold and wintry look to the overhead bins at one end of the plane, transitioning to warmth and sunshine towards the front.