Funny sister birthday cards

The bond with your sister is unique and enduring. Celebrate her special day with funny birthday wishes for sisters. They’re sure to make her laugh.

Professionally printed on firm, textured mat boards perfect for desks and shelves. Supplied with 3M velcro dots to easily affix to walls. Available in standard sizes. Looking for a unique and humorous 16th birthday card? Our "Sweet 16 Showdown" design is the perfect choice! Celebrate this milestone birthday with laughter as our lively illustration showcases a spirited 16 figure playfully kicking a surprised 15 figure. Spread joy and good vibes on their special day with this delightful card…

Looking for the perfect birthday meme? We’ve got you covered with the funniest and most relatable memes that will make your friends and family laugh out loud!

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Say Happy Birthday to your sister with our collection of funny and heartwarming wishes. Explore our 60 really funny birthday messages!

Funny Vintage 1920s Older Sister Birthday Card This is my Mom and her younger sister, circa 1926, Germany. Nothing like a little healthy sibling rivalry!