Well.... you could do it and keep it in a jar on the night stand and move into a cuck type of relationship where you watch her with other men. You could also maybe preserve it in a dildo sized bottle so it could be a toy for her.
I can see where it would be fun to not have a dick, but have threesomes with the wife where you hold the base of the other guy's dick and feed it to her, rub it on her face, put it in her, etc. That way you still get to participate and kind of use the other guy's dick like it was yours.
Just because you lose your penis doesn't mean she (either of you) has to give up on playing with penises!![]()