<iframe src="https://www.googletagmanager.com/ns.html?id=GTM-W3R8R6G&gtm_auth=AU1ugrxhJK_EQcp9wg5qxA&gtm_preview=env-1&gtm_cookies_win=x" height="0" width="0" style="display:none;visibility:hidden"></iframe>

56 lighthearted theme designs graphics for t-shirt and print on demand merch

Download lighthearted theme t-shirt designs and other merch graphics like book covers, phone cases, tote bags and more.

Sort by

Most relevant
Flat Vector Illustration of Seamless Pattern Featuring Red Dragons with Spiked Backs and Long Tails. Stars Scattered Across Light Background. Repeating Decorative Design for Kids and Fantasy Themes.
A cheerful cartoon character with a round yellow body, big eyes, and a wide smile holds a potted sunflower. The character wears gloves and sneakers, walking energetically on a beige background.
I'm not a complete idiot some parts are missing t shirt design . Funny humor t shirt design . Funny Tee graphic , Joke Shirt design . Funny Humor Gift T-Shirt . Humor quote tee template . Funny humor
Seamless Pattern Featuring Whimsical Suns with Faces. Vibrant Design in Pink and Purple Tones. Decorative Composition on Light Background for Fantasy or Playful Themes. Flat Vector Illustration.
Sweet illustration of a white puppy with pink ears sitting on a pastel mint green background. Perfect for lighthearted and joyful design themes.
illustration of a cheerful, vibrant-colored Octopus, perfect for a children's theme
The playful text "Quack" above adds a fun and whimsical touch, making this design perfect for children's products, nature-themed events, or anything related to ducks.
This vector features a croissant with a happy expression, bright colors, and a simple cartoon style, ideal for bakery or food themes, cheerful and playful.
Whimsical skeleton dancing happily with a stylish hat and festive orange accents creating a joyful spooky vibe
Ghost Marshmallow on a Stick, Perfect for Halloween Themes and Cute Designs
Colorful funny travel holiday themed pattern with hot air balloons, sunglasses, and maps.
Playful April 1 text on white background
Simple repeating pattern of white ghosts on a dark blue backdrop, for Halloween decorations, textile prints, event branding
Happy Cartoon Cats in a Cute Doodle Style , Cute hand drawn doodles ,Illustration Vector
Vector pattern on a summer theme, with the image of a bag, hat, glasses, flip flop, for printing on a banner, fabric, paper, funny style
This kids t-shirt design showcases cartoon work tools alongside the playful quote my tools my rules, perfect for inspiring little builders' imaginations during playtime or casual outings.
Cheerful children's design of a girl standing under an umbrella, perfect for playful illustrations, greeting cards, and seasonal designs.
A cheerful cartoon frog with bright eyes and green spots reaching toward a tiny fly above. Set against a vivid turquoise background, this fun vector art captures joy, nature, and playful curiosity.
vector illustration bright seamless pattern with cartoon goldfish
Cute cartoon birds on a deep blue background in a playful pattern design
Seamless pattern with hand-drawn green trees on a white background, ideal for nature-themed designs and wallpapers.
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
A Cute cloud with smiling face and lightning bolt below, representing playful stormy theme
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
illustration of a cheerful, vibrant-colored mouse, perfect for a children's theme
A lighthearted ghost hovers next to a bold letter G, creatively representing the term ghosting, This artistic display brings a fun twist to a modern communication theme.
A Cute umbrella with smiling raindrops, perfect for rainy day theme
illustration of a cheerful, vibrant-colored pig, perfect for a children's theme
Comical design featuring round glasses, a red clown nose, and a black mustache, ideal for April Fools or humorous themes.
Humorous Cartoon Cockroach Depicted In Different Comical Situations And Expressions. Vector Insect Themed Illustrations
A charming and playful cartoon illustration of a friendly green dinosaur with a long neck, expressive eyes, and a cheerful smile. The design features a lighthearted style with scattered footprint elem
A cheerful cartoon man with raised arms, expressing joy and celebration. Perfect for themes of happiness and positivity
A charming outline illustration of a ghost riding a ferris wheel evoking themes of Halloween fun amusement parks and lighthearted spooky adventures.
uxurious spruce in a children's cartoon style"
A funny skeleton dances joyfully on a black background, demonstrating its playful charm with funny gestures.
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
Delicate pastel wildflowers scattered on a dark indigo background.
illustration of a cheerful, vibrant-colored cat, perfect for a children's theme
illustration of number 1, perfect for a kid school or education theme
A Cute smiling cloud with raindrops, perfect for rainy day theme
A playful vector pattern featuring red bow ties and black mustaches on a white background, ideal for festive or humorous designs.
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
illustration of a cheerful, vibrant-colored sheep, perfect for a children's theme
Join us for a spooktacular evening at our Halloween party! Featuring colorful and playful monsters, this event promises fun and festive activities for all ages. Don’t miss out on the eerie excitement
A cartoon knight holds a chicken drumstick, facing an angry bear. Bold colors and exaggerated expressions enhance the humor
Ice Cream Cartoon T-shirt Design with Fun, Colorful, and Playful Graphics
Halloween vector illustration featuring a central jack-o-lantern with cat features, surrounded by two smaller pumpkins. A whimsical design ideal for festive projects.
The cartoon crab displays a range of funny facial expressions, from puzzled to delighted, captivating with its playful antics against a clean white background.
Design of kids t-shirt print with a bright yellow safety helmet and the quote born to build. Perfect for little builders ready to show off their creativity and love for construction.
A monkey and a giraffe in a playful cartoon style stand around a blank rectangular frame. The giraffe holds a flower while the monkey peeks from the side, creating a charming scene. Cartoon vector
Sponsored results by Shutterstock Logo
Get 15% off with code: VEXELS15
Illustration of a man with magnifying glass

Sorry, we couldn't find any matches for "lighthearted theme" .

Find the Best Designs for You

Hottest Designs New Merch Designs Browse by Categories

Find the best designs for you

of 2