Personalised One Happy Dude Birthday Birthday T-shirt, 1st Birthday shirt, one today Birthday boy t-shirt, 1st birthday sweatshirt
Personalised One Happy Dude Birthday Birthday T-shirt, 1st Birthday shirt, one today Birthday boy t-shirt, 1st birthday sweatshirt
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Celebrate your little boy's first birthday in style with our Personalised One Happy Dude Birthday Outfit from Spotted Lizard Prints. Lovingly hand printed to order, this personalised first birthday t-shirt or sweatshirt is the perfect outfit for celebrating an unforgettable milestone while creating memories you'll treasure forever.
Featuring a fun "One Happy Dude" birthday design, each outfit is personalised with your child's name on the front and a coordinating birthday design on the back, creating a unique keepsake that's perfect for birthday parties, cake smash photoshoots, family celebrations, and milestone photographs.
Every garment is individually hand printed in our Stafford workshop using premium materials and professional printing techniques, ensuring every order is made especially for your little birthday boy.
Personalise Your Birthday Outfit
Simply provide the name you would like printed on the outfit.
Example:
Oliver
Your personalised name will be professionally printed exactly as entered, so please double-check all spelling before placing your order.
The Perfect First Birthday Outfit
This personalised One Happy Dude outfit is ideal for first birthday parties, cake smash sessions, birthday photoshoots, family celebrations, birthday holidays, milestone photographs, birthday gifts, keepsake memory boxes, and creating unforgettable memories.
A stylish birthday outfit that's perfect for celebrating your little one's very first birthday.
Choose Your Style
Personalised T-Shirt
Our premium white t-shirts are soft, breathable, and comfortable for little ones throughout their special day.
Product Details:
- White
- 65% Polyester / 35% Cotton
- Approx. 165gsm
- Available in sizes 1–2 Years and 2–3 Years
- Additional sizes available on request
- Premium matte finish
Personalised Sweatshirt
Ideal for cooler celebrations or cosy birthday photos.
Product Details:
- White fleece crew neck sweatshirt
- Heavyweight 260–270gsm (approx.)
- 100% Polyester
- Twin needle stitching
- Fine knit ribbed cuffs and hem
- Soft, warm, and comfortable
- Premium matte finish
Available in sizes:
- 6–12 Months
- 1–2 Years
- 2–3 Years
- 3–4 Years
- 4–5 Years
- 5–6 Years
- 7–8 Years
- 9–10 Years
Premium Quality Print
Our professional sublimation printing process permanently infuses the design into the fibres of the fabric, creating a smooth, seamless finish that becomes part of the garment itself.
Unlike vinyl, our designs won't peel, crack, or fade, ensuring the vibrant colours remain bright and beautiful wash after wash.
Care Instructions
To keep your personalised birthday outfit looking its best:
- Wash at 30°C
- Do not bleach
- Do not tumble dry
- Iron up to 150°C
- Do not dry clean
Handmade by Spotted Lizard Prints
Every personalised One Happy Dude Birthday Outfit is individually hand printed to order in our Stafford workshop. We pride ourselves on creating high-quality personalised gifts with exceptional craftsmanship and attention to detail, producing keepsakes that families will cherish for years to come.
A Keepsake to Treasure Forever
More than just a birthday outfit, this personalised One Happy Dude First Birthday T-Shirt or Sweatshirt is a lasting reminder of one of your child's biggest milestones. Whether worn during birthday celebrations, captured in treasured family photographs, or carefully stored in a memory box afterwards, it's a keepsake filled with happy memories of a very special first birthday.
Note: On some products, the display image is an A.I and Colours may vary slightly. Due to the way different materials react to heat and lighting, colours may vary slightly. Checkout our blog for regular updates.
Shipping & Returns
Shipping & Returns
Enjoy Fast and Reliable Shipping on All Orders.

Most asked questions
What occasions are personalised gifts suitable for?
Our personalised gifts are perfect for every special occasion, including birthdays, new baby celebrations, christenings, weddings, anniversaries, Mother's Day, Father's Day, Christmas, Valentine's Day, teacher thank-you gifts, nursery graduation, and first day of school celebrations. A personalised gift adds a thoughtful touch that creates a lasting keepsake, making every milestone even more memorable.
Why choose a personalised gift instead of a standard gift?
A personalised gift is unique because it is created especially for the recipient. Adding a name or special message transforms an everyday item into a treasured keepsake that can be enjoyed for years. Whether it's a personalised water bottle, cushion, soft toy, Santa sack, or memory board, personalised gifts show extra thought and are ideal for creating meaningful memories.
What are your most popular personalised gifts?
Some of our most popular products include personalised water bottles, school essentials, Santa sacks, first day of school boards, baby keepsakes, soft toys, wedding gifts, and personalised cushions. We regularly introduce new designs and seasonal collections, ensuring there's something special for every age, occasion, and celebration throughout the year.
Why buy personalised gifts from Spotted Lizard Prints?
At Spotted Lizard Prints, we specialise in creating high-quality personalised gifts designed and printed with care in the UK. As a family-run business, we're passionate about producing unique gifts that help celebrate life's biggest moments. From birthdays and weddings to Christmas and back-to-school milestones, our growing collection combines quality, creativity, and thoughtful design to create keepsakes that families can treasure for years to come.