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.

Sort by

Most relevant
Adorable ghost character wearing a playful pumpkin-themed hat and holding a smiling pumpkin bucket, perfect for Halloween festivities
Celebrate International Cat Day on August with this illustrated image featuring adorable cartoon cats arranged neatly, conveying a theme of animal love and appreciation.
Cheerful ghost character smiling while holding three pumpkin-themed balloons, celebrating the joyful spirit of Halloween festivities
A diverse collection of 50 linear dot icons representing various fantasy themes, showcasing elements like carnival, entertainment, and whimsical activities in a playful design.
Smiling butterfly with teal and pink patterned wings, perfect for spring decor, whimsical illustrations, or lighthearted insect-themed children’s designs.
Coastal western vector illustration line art featuring octopus in cowboy hat. Modern nautical wall art.
Collection of hand-drawn colorful kites with bow tails, featuring various shapes and vibrant colors, isolated on a clean white background, perfect for spring or summer themes.
Vector illustration of expressive socks in a yellow basket. Bold colors and cartoon style enhance the playful 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.
Charming fairy illustration with vibrant colors, showcasing delicate wings and a playful pose. Ideal for fantasy-themed projects
Seamless Pattern Featuring Castles, Swords, Birds, Crowns, Stars, Cherries, and Hearts. Whimsical and Decorative Design for Kids and Fairytale Themes. Flat Vector Illustration.
A trio of heart-shaped balloons are depicted in a clean line drawing conveying themes of love and festivity. With their simple style, these balloons exude an airy lightness ideal for celebratory
Playful Blue Jellyfish Character Illustration
Seamless Pattern of Mermaids with Crowns, Seashells, Starfish, Fish, and Seaweed. Playful Marine Theme on Light Background. Decorative Design for Kids and Fantasy Stories. Flat Vector Illustration
Flat Vector Illustration of Seamless Pattern Featuring Unicorns, Rainbows, Stars, and Hearts. Playful Composition in Pink and Red Tones. Decorative Design for Kids and Fantasy Themes
Seamless vector pattern featuring charming grey rocking horses, festive red bows, and delicate light-blue snowflakes on a white background, ideal for Christmas-themed designs.
A whimsical collection of pastel-colored doodle elements featuring rainbows, cats, stars, houses, flowers, and nature icons. Perfect for children’s designs, stationery, digital scrapbooking, and playf
A delightful array of cartoon-style animal characters is displayed in vibrant colors. Each character exhibits unique features, creating an engaging visual ideal for children’s books or merchandise.
illustration of a cheerful, vibrant-colored Crocodile, perfect for a children's theme
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.
Pattern with repeating chocolate cake slices topped with a cherry on a soft beige background, creating a fun, sweet, and playful dessert-themed design.
The image showcases the phrase "WORLD SMILE DAY" in a colorful design, adorned with playful smiley faces. The word "WORLD" is presented in a unique, stylized font, enhancing the joyful theme
Egg Balancing on Nose for Fun Trick or Challenge Theme
Minimal black outline of a fluffy cloud with a smiling face. Cartoon-style design evokes friendliness, good weather, and emotional lightness in nature or children's themes.
Cute and quirky Great for kids, party decor, or lighthearted romantic gifts
Monster Helpers set. Each character embodies a unique work-related concept, bringing a lighthearted touch to professional themes. Vector illustration
This pattern has cute white bunnies with purple carrots scattered on a teal background, creating a playful, whimsical, and fun design perfect for kids or Easter themes.
Seamless Pattern Featuring Pink Dragons, Castles, Crowns, Birds, and Hearts. Playful Design for Kids and Fairytale Themes. Decorative Composition on Light Background. Flat Vector Illustration
A whimsical fairy illustration with blue wings, wearing a green dress. Vibrant colors and playful expression enhance the magical theme
illustration of a cheerful, vibrant-colored sheep, perfect for a children's theme
Fluffy clouds and stylized raindrops on a vibrant blue background. A fun and cheerful weather-themed seamless pattern for kids’ fabric and decor.
illustration of a cheerful, vibrant-colored peacock, perfect for a children's theme
Charming illustration of a cute mouse holding a book and pointing with a stick, showcasing a playful and educational theme. Perfect for children s materials and playful designs
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.
illustration of a cheerful, vibrant-colored Koala, perfect for a children's theme
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.
Vector illustration of a tombstone with engraved RIP lettering on a white background, suitable for various projects dedicated to the theme of loss and funerals
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.
Fluffy clouds and stylized raindrops on a fresh green background. A cheerful seamless pattern perfect for kids’ fabric, decor, and rainy day themes.
A whimsical vector pattern featuring brown horses, sheriff stars, cowboy hats, and wanted signs on a white background. Ideal for playful designs or Western-themed projects.
Adorable cartoon rabbit holds an oversized pencil while writing in a journal. This vector illustration captures a playful scene perfect for children s creativity themes
Light blue background with white four-leaf clovers scattered evenly, featuring curved thin stems. The seamless, fresh pattern feels cheerful, whimsical, and perfect for spring or lucky-themed designs.
A playful vector pattern featuring cartoon-style horses, red hearts, and sheriff stars on a white background. The design is vibrant and whimsical, suitable for children's products or playful themes.
A playful dinosaur wearing sunglasses and a vibrant floral necklace stands confidently. The design showcases a fun, cheerful vibe, perfect for summer-themed decorations or events.
A playful pattern featuring chocolate donuts with green sprinkles and bunches of bananas on a white background. The design is vibrant and fun, perfect for food-related themes.
A cartoon avocado rides a surfboard on ocean waves, enjoying a fun and playful moment. The cheerful character brings a lighthearted and tropical vibe, perfect for summer and adventure themes
Vibrant cartoon drawing of happy hippo grinning widely, adding playful and joyful vibe to any design or artwork, perfect for children illustrations or fun themes. Vector illustration.
A playful vector pattern featuring brown horses and red hearts on a white background, ideal for children's designs or romantic themes.
A playful vector pattern featuring red bow ties and black mustaches on a white background, ideal for festive or humorous designs.
A Halloween-themed pattern with a lighthearted and playful style. It includes various skulls, bones, and ghosts, along with small stars, all set against a purple background.
Sponsored results by Shutterstock Logo
Get 15% off with code: VEXELS15
Edit Online Badge Edit Online

Playful beer friendship quote design t-shirt design template

Playful beer friendship quote design t-shirt design template
Playful beer friendship quote design t-shirt design template
Edit Online Badge Edit Online

Cute raccoon bowling champion design t-shirt design template

Cute raccoon bowling champion design t-shirt design template
Cute raccoon bowling champion design t-shirt design template
Crown icon
Premium

Minimalist snowman face design PNG Design

Minimalist snowman face design PNG Design
Minimalist snowman face design PNG Design
Minimalist snowman face design PNG Design
Crown icon
Premium

Playful hot air balloon illustration with hearts PNG Design

Playful hot air balloon illustration with hearts PNG Design
Playful hot air balloon illustration with hearts PNG Design
Playful hot air balloon illustration with hearts PNG Design
Crown icon
Premium

Cute cartoon raccoon design with purse PNG Design

Cute cartoon raccoon design with purse PNG Design
Cute cartoon raccoon design with purse PNG Design
Cute cartoon raccoon design with purse PNG Design

of 2