55 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.

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Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
illustration of a cheerful, vibrant-colored turtle, perfect for a children's theme
Seamless pattern of thin lineart of bright smiling suns with simple cartoon-like rays. Soft and cheerful atmosphere, playful design. Vibrant, whimsical, joyful and uplifting children motifs.
A skeleton holding a frisbee is a playful and quirky illustration suitable for Halloween-themed designs, sports events graphics, or any fun, lighthearted projects.
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.
illustration of a cheerful, vibrant-colored Hedgehog, perfect for a children's theme
Charming Happy Father’s Day greeting card with pink tones, a heart-shaped background, and a playful mustache element. Ideal for celebrating dads with a lighthearted and loving design theme.
Adorable ghost character wearing a playful pumpkin-themed hat and holding a smiling pumpkin bucket, perfect for Halloween festivities
illustration of a cheerful, vibrant-colored Giraffe, perfect for a children's theme
Vibrant illustration of a jester hat with red, green, and blue panels and yellow pom-poms, perfect for festive themes.
illustration of a cheerful, vibrant-colored rabbit, perfect for a children's theme
Playful ghost character peeking from behind a gravestone with RIP inscription, adding a lighthearted touch to Halloween celebrations
Colorful Easter Design with Hand-Lettering, Decorative Eggs, and Spring Flowers, Perfect for Celebrating Easter and Spring Festivities with Vibrant Colors and Festive Themes. EPS 10
illustration of a cheerful, vibrant-colored dolphin, perfect for a children's theme
Playful orange cat wrapped in mummy bandages with toilet paper, perfect for Halloween-themed designs, cute spooky illustrations, party decor, and funny seasonal artwork.
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
Charming black and white vector illustration of a horse with a braided mane and a decorative floral pattern. Ideal for children s designs, animal-themed projects, and more.
illustration of a cute, vibrant-colored capybara, perfect for a children's theme
Happy easter poster design featuring smiling bunny and decorated egg.
Fun love-themed stickers featuring hearts, gifts, and sweet treats
Cute bear illustration isolated on white designed for kids in simple style. Vector illustration
Seamless pattern with hand-drawn green trees on a white background, ideal for nature-themed designs and wallpapers.
watercolor vector illustration poster with funny quote when in doubt look intelligent
Birds, Petals, and Hearts Pastel Pattern
Humorous Cartoon Cockroach Depicted In Different Comical Situations And Expressions. Vector Insect Themed Illustrations
Seamless Pattern of Playful Dancing Skeletons on Dark Background: Halloween-Themed Design
Three pastel teal hearts are floating on a white background, creating a simple yet charming design suitable for various romantic or affectionate themes
illustration of a cute, vibrant-colored elephant, perfect for a children's theme
Colorful cartoon fish and sea creatures in a playful design. Vector illustration
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.
Hand drawn vector pattern of colorful balloons floating on a white background for festive designs vector illustration
Happy easter card with colorful eggs and bunny design.
illustration of crayons perfect for a kid school or education theme
Seamless Cute Sleeping Cats and Moons Pattern for Cozy Pajamas, Pet-Themed Prints, or Relaxing Nighttime Designs
Monster Helpers set. Each character embodies a unique work-related concept, bringing a lighthearted touch to professional themes. Vector illustration
The cartoon crab displays a range of funny facial expressions, from puzzled to delighted, captivating with its playful antics against a clean white background.
A refreshing tropical drink in a jar with a small umbrella, perfect for summer vibes.
Hand-drawn collection of vector spot art doodles with Christmas theme. Line drawing on one layer, color fills on another and shadow on bottom layer: easy to separate and recolor.
Graffiti tag “Mood On” street art urban for World Emoji Day, colorful mural full of fun and expressive vibes.
illustration of notebook, perfect for a kid school or education theme
Charming Dragon Illustration for Fantasy Themes
A whimsical pink balloon with white stripes, featuring a curly dark string. Ideal for children's themes, festive events, or creative designs needing a playful touch
A stylized sun illustration with a smiling face. The sun has a round yellow body and elongated orange rays. The design is simple and cheerful, suitable for various themes.
Pink balloon shaped like a bear face floating against a plain background
A drawing of a pair of kidneys with red, blue and yellow lines. The drawing is in a cartoon style and has a playful, lighthearted mood
Seamless Cute Sleeping Cats and Moons Pattern for Cozy Pajamas, Pet-Themed Prints, or Relaxing Nighttime Designs
illustration of a cheerful, vibrant-colored wolf, perfect for a children's theme
Charming multicolored chicken for children's cartoon illustrations
illustration of a cheerful, vibrant-colored Sloth, perfect for a children's theme
Funny love-themed doodle stickers with hearts, gifts and sweet treats for Valentine's Day
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Illustration of a man with magnifying glass

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