<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
National Pink Day is a lighthearted day encouraging people to wear pink, share pink-themed items, and raise awareness for causes often associated with the color, such as breast cancer awareness.
Playful Halloween scene showing person emerging from coffin surrounded by colorful candy. Spirit of Halloween concept
A watercolor vector background of ethereal blue clouds with heart-shaped accents. Delicate shades of azure and cerulean sense of magic and wonder. Dreamy illustration
illustration of a cheerful, vibrant-colored zebra, perfect for a children's theme
illustration of books, perfect for a kid school or education theme
Cheerful chicken in a children's cartoon style, vector illustration
Sweet cat character adorned with angel wings and a halo, embodying purity and cuteness in a charming cartoon style
illustration of a vibrant-colored Giraffe, perfect for a children or kid theme
Cowboy and horse themed childish pattern with cute characters and cacti.
Cute and quirky Great for kids, party decor, or lighthearted romantic gifts
Black and white hand drawn doodles fill this simple vector background, offering a lighthearted children’s theme with basic shapes and friendly, joyful illustrations.
Three pastel teal hearts are floating on a white background, creating a simple yet charming design suitable for various romantic or affectionate themes
A fun and colorful pattern featuring chocolate donuts with green sprinkles and pineapples on a white background. Ideal for food-related designs or playful themes.
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
Abstract composition with lively pink and blue doodles, fun forms and artistic freehand strokes in a modern creative style.
Moon-shaped balloon floating against a minimal background
Hand drawn colorful balloons and festive garlands background create a cheerful atmosphere for celebrations vector illustration
illustration of a cheerful, vibrant-colored cat, perfect for a children's theme
illustration of cute penguin, perfect for a children or kid theme
Vibrant Blue Bubble Background with Abstract Cloud Elements - Playful and Modern Design for Kids, Winter Themes, and Creative Projects
Charming kawaii bear wearing a witch or wizard hat, drawn in pastel colors. Great for Halloween designs, greeting cards, kids’ books, and magical-themed products.
Vector illustration of a cute baseball ball mascot happy dancing. Features a joyful character with a big smile, lively movements, and a festive atmosphere, perfect for sports-themed designs
Flat Vector Illustration of Seamless Pattern with Fairytale Castles. Repeating Design Features Bright Pink and Red Towers with Flags and Arched Windows. Decorative Design Isolated on Light Background
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.
illustration of a cheerful, vibrant-colored chicken, perfect for a children's theme
ink heart with wings in a whimsical vector illustration, symbolizing love, affection, and romance. Ideal for Valentine's Day themes or romantic design elements.
Charming fairy illustration with vibrant colors, featuring a green dress and blue wings. Playful pose and cheerful expression
illustration of a cute, vibrant-colored elephant, perfect for a children's theme
Seamless Cute Sleeping Cats and Moons Pattern for Cozy Pajamas, Pet-Themed Prints, or Relaxing Nighttime Designs
Cartoon Turtle in Nature – A cheerful green turtle standing on sandy ground with grass and a rock, under a bright blue sky. Ideal for kids' illustrations, storybooks, or nature-themed content.
Cartoon-style burglar dressed in warm clothes with a sack, symbolizing crime, mystery, and detective themes in a lighthearted, animated design
illustration of a cheerful, vibrant-colored wolf, perfect for a children's theme
illustration of a cheerful, vibrant-colored dolphin, perfect for a children's theme
illustration of a cheerful, vibrant-colored Parrot, perfect for a children's theme
Certified April Fools' Day T-Shirt Design - "Laugh Out Loud Guaranteed!"
Cute vector illustration of a ghost playing with spiders in a whimsical, web-covered setting. The ghost s playful expression adds a charming touch to this Halloween-themed artwork.
Vibrant pink skeleton illustration adorned with leaves and surrounded by abstract plants on a black background. Creative and whimsical design with a playful, artistic theme
A vibrant vector art of a joyful ice cream cone topped with sprinkles, showcasing a fun and cheerful design perfect for playful and food-themed digital illustrations
A playful, abstract illustration of a yellow balloon with white polka dots on a simple white background, conveying a sense of fun and celebration, perfect for party-themed designs
illustration of pencil and eraser perfect for a kid school or education theme
Playful seamless pattern of firecrackers, ideal for fabric and paper printing. This vibrant design brings a festive spirit to any project, perfect for celebrations, crafts, and holiday decorations."
This whimsical illustration features a charming raccoon holding a lemon with the humorous quote: "In the interest of full transparency, it was not easy peasy lemon squeezy." Perfect for quirky designs
Seamless Cute Sleeping Cats and Moons Pattern for Cozy Pajamas, Pet-Themed Prints, or Relaxing Nighttime Designs
Mr Eggs cute Sticker illustration
Bright floral and egg pattern design for spring celebration or decoration
vector illustration seamless pattern with cute cartoon goldfish
Pink stripes decorated with small flowers and butterflies
Cute and Cartoonish Bunnies: Adorable bunny clip art featuring chubby cheeks, expressive eyes, and endearing poses, perfect for creating charming and lighthearted Easter-themed content.
A delightful seamless pattern featuring cheerful cartoon bananas on a vibrant blue backdrop, conveying a playful and lighthearted theme suitable for fun designs.
Seamless Cute Sleeping Cats and Moons Pattern for Cozy Pajamas, Pet-Themed Prints, or Relaxing Nighttime Designs
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