You can customize the outside of the cards any way you wish with any font you wish; the following are merely suggestions:

Sympathy

With Sympathy
Forever in your heart
Forever loved
I’m so sorry
We’re so sorry
She / He misses you too
When you feel me in your heart, look up
I remember you by heart
Dream a little dream of me…
Beloved

Birthday

Happy Birthday!
Happy Birthday Cupcake
Eat cake
However old you are is the new 30
Happy Birthday Handsome
Happy Birthday Gorgeous
Birthday wishes

Thank You

Thank you
Many thanks
Thanks a bunch
With gratitude
So grateful
Heartfelt thanks

Congratulations

Congratulations
Congrats
You did it!

Encouragement / Friendship

You Matter
You’re special
Huge hugs
Hugs inside!
Sending hugs
You make the planet nicer

Just Because

Never grow up
Hello
Relax, cupcake
Huge hugs
Hiya handsome!
Hey gorgeous!
Thinking of you
Happy Spring
Happy Tuesday… Inside: Or whatever day it happens to be when the post office gets this to you

Love

I wuv you
For my cupcake
Grow old along with me
Beloved

Animal-specific

Right Meow
Outside: More than a pet… Inside: A part of the family

Bunny Series

Grow old along with me…
Hoppy Anniversary
Hoppy Birthday
Some bunny loves you
Welcome, little one
No bunny compares to you
Oh Hoppy Day!

Babies

Welcome, little one
Welcome to the planet
A fresh human!

Holiday

Merry Christmas
Happy Holidays
Merry Winter
Holiday Wishes