To: NAME

Age: AGE

Relationship: RELATION

(Generate a fun opening line mentioning AGE and inside joke INSIDE JOKE)

On this special day, I wish you:

(Create a wish related to NAME's hobby HOBBY )

(Generate a humorous wish about aging)

(Produce a heartfelt wish for the future)

May your day be filled with:

More FAVORITE_FOOD than you can eat

Fewer ANNOYANCE than usual

(Generate a silly but pleasant surprise)

Remember, you're not just AGE years old, you're:

(Create a funny alternative measure of AGE)

Here's to:

(Generate a toast relevant to NAME's personality)

(Produce a wish for the coming year)

(If RELATION is close, generate a short, heartfelt message)

(If appropriate, create a humorous comment about NAME's age)

Happy Birthday, NAME!

Love,

P.S. (Generate a playful postscript, not letting NAME forget about the INSIDE JOKE)