Is there a way to surprise your loved ones after "Death" ?

Even writing "Death" makes me sad & terrified, but sometimes things change very little even if you want to. Every one of us has an end to this life, but our love for people around doesn't change much. If you have seen the movie "P.S. I love you", I felt amazed that someone can plan so much after his death to surprise and gift his wife at perfect instances. That's exactly what i am talkin about.

Is it possible or any entrepreneur out their thinking about such a service, were someone can subscribe and pay for a service that need to be performed after his/her death :). Typically, Schedule all the moments and time to gift and surprise his/her loved ones.

I know I sound crazy here, not all that shown in movies can be brought to reality, but if it really makes someone special to you happy, Why not ?