Baby Shower Party

This is a baby shower party and the baby will be a boy ...

I'm not positive, but maybe something like ...

"Congratulations on your new baby, (whatever name it is), we hope you start a new life with your baby. Hope to get to know you and the baby.
Love
(Your Name)

Perhaps something like that or similar.

"For Mr. Little (family name) of a healthy, and those of Mom and Dad."

sounds sincere enough, and you do not have to worry about making the wrong name,

We are excited to host small (baby's name) in the world.

For (the baby's mother), we wish you a safe delivery ....

Be creative, but concise. Try something like this:

"Give your new little man bit the best of
daughter of love! "Xx xx