Downward Slope

Derek Blasberg
Customize

Send a funny mathematical birthday card to any friend or loved one! This line graph design from Derek Blasberg features a "The Good News: This is The Youngest You'll Ever Be Again" message and a fully customizable birthday note at the bottom of the card. Perfect for the math whiz in your life!

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Change your card’s text, style, envelope, backdrop and more

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Add your event’s details, make or import a guest list, and send with a click

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Track RSVPs and communicate with guests instantly