66 lighthearted design designs graphics for t-shirt and print on demand merch

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

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Flat Vector Illustration of Seamless Pattern Combining Abstract Floral and Strawberry Elements. Vibrant Pink, Yellow, and Green Color Palette. Design for Backgrounds, Textiles, Wrapping Paper
Playful cartoon-style illustration of three characters celebrating a birthday with party hats, gifts, a cake, and confetti. Captures the joy and excitement of birthday celebrations in a fun design.
A charming ladybug with a fancy top hat, perfect for playful designs.
Just Be Cool T-shirt Design Featuring a Cartoon Bear on a Scooter
Colorful hand drawn seamless sun pattern on a white background for kids cute cheerful design vector illustration
A cartoonish image of two cups of beer and a plate of cookies. Scene is lighthearted and fun
Minimalist illustration of a black, curled mustache with a whimsical design, ideal for humor or April Fools themes.
Funny T-Shirt Design: I Put the Pro in Procrastinate with Humor Icons
Smiling clown in a cupcake costume with a speech bubble on a black background, creating a humorous and festive design.
Simple T-Shirt: I Put the Pro in Procrastinate with Relaxed Icon Design
Minimalist design of clown glasses, a red nose, and a mustache on a bright blue background, symbolizing April Fools humor.
A soft bluebird with delicate pastel hues, perfect for spring designs.
Adorable seamless pattern with colorful rainbows, fluffy clouds, and pink hearts on a light blue background, perfect for playful designs
Ice Cream Cartoon T-shirt Design with Fun, Colorful, and Playful Graphics
Simple and colorful April Fools Day text with a playful black mustache design, celebrating humor and pranks on a clean background.
April Fools Day in elegant lettering, featuring a playful mustache design on a soft yellow background, highlighting humorous traditions.
Elegant seamless pattern featuring decorative heart lockets with swirls and pastel accents on a light blue background, ideal for romantic designs
Brightly colored cartoon-style spaceships soar through a starry cosmic background, showcasing various creative designs and planets in a fun, imaginative journey.
Loving Cartoon Valentine. Playful cartoon figure holding a heart on a pastel purple background with a sweet message. Perfect for Valentine’s Day cards, posters, and heartfelt designs.
A cartoon of a box with a red cross on it and a parachute above it. The box is labeled "Package" and the parachute is labeled "Parachute". The image has a playful and lighthearted mood
Adorable seamless pattern featuring pink flamingos wearing party hats, surrounded by hearts, on a soft pink background for festive designs
Avatar of monster in the colorful style. The funny monster avatar adds a playful touch, making it an engaging and lighthearted choice for various digital platforms. Vector illustration.
Walk T-shirt Design with Simple Icons and Bold Typography for Active Lifestyles
The minimalist style captures the magic of a Halloween night, where enchanting creatures meet for lighthearted fun
Illustration of four colorful outlined heart shapes arranged around the word LOVE in bold letters. Modern romantic design on a white background for Valentine's Day or love-themed projects.
Black and white party hat design with stars for celebrations and festive occasions
Cute Smiling Cloud with Raindrops. Adorable cloud with a smiling face, rosy cheeks and raindrops on white background, perfect for children's designs
Seamless pattern of cute cartoon little bear and bees with fun and playful design for children
Certified April Fools' Day T-Shirt Design - "Laugh Out Loud Guaranteed!"
Two simple balloons on string in a minimalistic black and white design
Cute Valentine Scene. Sweet cartoon figure hugging a cat on a pastel purple background with hand-drawn love elements. Ideal for Valentine’s Day cards, posters, and heartfelt designs.
Charming easter card design with happy bunny on egg for festive decoration.
Fun Prankster T-Shirt Design - Prankster in Action Day 2025
Fun Prankster T-Shirt Design - Prankster in Action Day 2025
Minimalist vector illustration of a heart and envelope in doodle style. Romantic theme with playful lines, deep red accents, and beige background. Ideal for Valentines Day or love-themed designs
Playful cowboy and horse children's pattern for creative design projects.
Happy easter poster design featuring smiling bunny and decorated egg.
Duck illustrations in colorful cartoon styles, A collection of duck illustrations in various colorful cartoon styles, featuring playful designs and charming characters for creative projects.
Collection of cute houses in a whimsical childlike style.
Seamless Pastel Easter Egg Pattern on Light Background. Colorful Egg-Shaped Pattern in Soft Pastel Tones. Minimalist Pastel Egg Design for Spring
Cool Playful Duck With Hat And Sunglasess Logo Design
Cute Mascot Illustration Coffee Paper Mug, Flat Cartoon Style Suitable for Landing Page, Banner, Sticker, Background
A set of Halloween-themed stickers in doodle art style would feature fun, hand-drawn illustrations with playful, sketchy lines. The doodle style adds a fun and lighthearted feel, perfect for creating
Seamless Cute Kawaii Food Pattern with Smiling Cupcakes and Treats for Playful Designs, Kids' Products, or Fun Branding
happy cartoon chubby kid design
Cute pattern featuring teddy bears, cupcakes, and hearts in playful design
Seamless Cute Kawaii Food Pattern with Smiling Cupcakes and Treats for Playful Designs, Kids' Products, or Fun Branding
Vibrant Gradient Circular Backgrounds Set for Spring Cards. Fresh Green Yellow Blue Gradient Background. Heart Shaped Springtime Design for Nature Themed Abstract Circular Art.
The seamless pattern features a playful and cheerful pattern of smiling suns with various words "HAPPY," "JOY," "SUN," and "SMILE" and blue circles scattered around.
Embrace humor with this witty MS-themed t-shirt. Featuring a playful design, it highlights the overactive immune system with a touch of comedy. Perfect for awareness and support.
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Cupid cage editable t-shirt design template

Cupid cage editable t-shirt design template
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Dragon head badge editable t-shirt design template

Dragon head badge editable t-shirt design template
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Chinese rabbit editable t-shirt design template

Chinese rabbit editable t-shirt design template
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Good year rabbit editable t-shirt design template

Good year rabbit editable t-shirt design template
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Capybara anatomy cute editable t-shirt template

Capybara anatomy cute editable t-shirt template
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Fox anaotmy editable t-shirt design template

Fox anaotmy editable t-shirt design template
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Axolotl anatomy editable t-shirt design template

Axolotl anatomy editable t-shirt design template
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Lord of hell editable t-shirt design template

Lord of hell editable t-shirt design template
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Metal goat editable t-shirt design template

Metal goat editable t-shirt design template
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Pregnancy quote editable t-shirt design template

Pregnancy quote editable t-shirt design template
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Pastel girl editable t-shirt design template

Pastel girl editable t-shirt design template
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Royal corgis editable t-shirt template

Royal corgis editable t-shirt template
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Save the queen editable t-shirt design template

Save the queen editable t-shirt design template
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Queen crown monoline editable t-shirt template

Queen crown monoline editable t-shirt template
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RIP queen editable t-shirt template |T-Shirt Maker

RIP queen editable t-shirt template |T-Shirt Maker
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England queen editable t-shirt design template

England queen editable t-shirt design template
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Queen of England editable t-shirt design template

Queen of England editable t-shirt design template
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Floral queen editable t-shirt design template

Floral queen editable t-shirt design template
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Rockstar guitar editable t-shirt design template

Rockstar guitar editable t-shirt design template
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Tacosaurus editable t-shirt design template

Tacosaurus editable t-shirt design template

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