Of course its possible. You could even go so far as to have flowers delivered every year on mothers day.
She might be upset for a while, but she might be happy that you sent her stuff too. If my ex wasnt gonna move in a year, I'd deliver flowers to her on her birthday every year after I'm gone.
Idk. I suppose it could be done, but I want my family to forget about me as much as they can. I even plan on selling most of my possessions to make the process as easy as possible. They won't have to sort through my things. All my loose ends will be tied up. After they put me in the ground, they are free to never think about me again.