Isn't there an app for assigning different signatures to contacts?

[AC Question]

I'M NOT interested in just a signature, I can do that now. I want to assign automatic signatures to different contact names...
such as to my children, Love you, World's BEST Mom
Spanish Student's....Señora
Spanish Church members... Dios te bendiga, Señora
My nieces and nephews...Love you...your FAVORITE Aunt
My sister and brother, Love from your MUCH YOUNGER sister

Hasn't anyone invented something like that yet? Everything I've seen is just for adding ONE standard signature, I want VARIETY assigned to the numbers.

Thank you...your NUTTY signature happy friend ;0)
Sharon