Front: Happy 100th to a very special lady!
Inside: Congratulations on your continued existence!

Defying God is awesome!!!
Your loving grandson,
Chase

Front: Happy birthday, Grandma! Sorry all your friends are dead… :(
Inside: …but at least you can't remember them! :D
Love you!
Chase

Front: Guess what, Grandma? You've been around a whole century!
Inside: You outlasted Grandpa by 20 years! Good job!
Does it get lonely at night?
Love,
Chase

Front: Its almost time to say goodbye…
Inside: …so please don't forget to give me the combination to that big safe in your basement. You promised!
Hugs,
Chase

Front: Happy 100th! You made it!
Inside: Ever wonder if there's really a Heaven? I do!
Let me know!
Chase