Funny 50th Birthday Card

Turning 50 never looked so mathematically optimistic. This hilarious birthday card is perfect for anyone hitting the big five-oh with a sense of humor still firmly intact. It’s a lighthearted way to remind them that age is just a number — and math can still work in their favor.

• A2 size (4.25” x 5.5”) — compact and easy to display on desks, fridges, or corkboards
• Includes a brown kraft envelope — rustic, recyclable, and ready to send or hand-deliver
• Blank inside for your personal touch — write something sincere, sassy, or straight-up silly
• Cheerful cupcake artwork with bold text — fun, colorful, and perfect for milestone birthdays
• Printed on thick, premium cardstock — smooth to write on and sturdy enough to keep

This card is designed for friends, romantic partners, or family members who are proudly entering their 50s — or at least pretending it’s just another teenage phase. Whether you’re gifting it at a party or popping it in the mail, it’s a clever and funny way to say: you're not old, you're just creatively young.