Vintage Cat in the Hat Dr Seuss First 1st Birthday Party Invitation Set for Girl or Boy


Step into the enchanting universe of Dr. Seuss with our printed "Cat in the Hat" 1st Birthday Invitation Set, specially designed to bring a touch of whimsy to your little one’s first big day. This beautifully crafted set captures the essence of the magical world with vibrant images of the mischievous Thing 1 and Thing 2, set against the iconic red and blue stripes that are synonymous with the Cat's unforgettable hat. Perfect for fans of the beloved children’s author, this set is your gateway to a celebration filled with imagination and joy.

This premium printed collection includes everything you need to set the stage for a memorable Seussian adventure: an eye-catching birthday invitation that promises fun at every turn, a heartfelt thank you card to express your gratitude in style, and a coordinating envelope design that completes the whimsical look. Each piece is printed on high-quality paper that brings the vivid colors and delightful illustrations to life, ensuring that your guests are captivated from the moment they receive their invitation.

Customizing your invitations is straightforward and hassle-free, allowing you to add a personal touch to your celebration without compromising on quality or design. Share the magic of your child’s 1st birthday with this exquisite Dr. Seuss-themed invitation set, and create lasting memories that you and your guests will cherish. With its blend of classic charm and festive flair, this printed invitation set is an ideal choice for ensuring that your little one’s first birthday is as unique and special as the magical world of Dr. Seuss.

Upon purchase, access the user-friendly "Corjl" design editor via email link. Customize text, add images, and refine styles with ease. Approve your edits, and we'll promptly start production. Expect your order within a week after proof approval! Click on link below to try out before purchase.


    To place an order on our website, please fill out the form below 😊


    • All wording can be changed.
    • Font colors can be changed.
    • Different fonts available.
    • Some layers can be moved around.
    • Images/photos can be uploaded.
    • This design is a self-edit template. 
    • If you need help, please ask.

    Click "Chat" if you have any questions 😊

    Corjl is a versatile design editing application that allows you to customize fonts, text, colors, layer positioning, add images, apply drop shadows, and adjust hue and saturation.

    Corjl is accessible from your smartphone, tablet, or computer. For detailed designs, we recommend using a computer for enhanced options and easier navigation. No special software is required to use this editing program.

    Each invitation design includes four template files: one for the invite design, the invite envelope design, the thank you card design and corresponding envelope template. The invite and thank you card designs consist of two pages, enabling you to edit the front and backside. Page 1 represents the front, Page 2 is the backside of the flatcard. 

    The envelope designs comprises two pages: Page 1 for the envelope front and Page 2 for the backside flap design.

    Rest assured, if you opt for a customized design that requires graphic designer assistance, you're in excellent hands! Our dedicated team will go the extra mile to ensure that your proof matches your vision perfectly. To achieve this, we kindly request that you provide us with detailed information about your desired design using the order form below. Within 24 business hours, we will diligently create the proof and send it to you via email. It's crucial that you keep an eye on your inbox to review and approve the designs before we proceed with printing and shipping your order. Your satisfaction is our top priority, and we're committed to delivering a final product that meets and exceeds your expectations.

    Please click on "CHAT" if you have any questions. A real person will respond, we do not use bots!

    INVITATION FLATCARD - 4.7 x 7.2 inches

    INVITATION ENVELOPE - 4.72 X 7.28 inches

    THANK YOU & RSVP CARDS - 5.5 X 4.25 inches

    THANK YOU & RSVP ENVELOPES - 5.58 X 4.33 inches

    Feel free to reach out via the "CHAT" app if you require a different size. We'd be happy to provide you with pricing and various size options to suit your needs.


    • Sent to production in 1 business day. 

    • Production/Transit time 6 business days.


    • Sent to production upon proof approval.

    • If you self-edit your cards & approve, we'll send to production right away!

    • Upon approval, production/ship 6 business days.

    *You should receive your order within 1 week!

    Customer Reviews

    Based on 1 review
    Joann Mantle
    Dr. Seuss Children's Book Thing 1 Thing 2 printed birthday party invitations for a 1 year old

    I love these invitations! They came out super cute! The quality is very nice and the colors really pop. The printed envelopes are the best! I am so glad I opted for them cause they are totally worth the price. I also ordered the thank you cards. I am so happy with my purchase and I will definitely order from Swirly World again!!

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