Ok, I have thought about it for a day, and in my infinite wisdom...*cough*...have determined that the wedding line is not funny as used. 'Giving back the gifts' could be quite funny in other circumstances, but the extraordinary sadness of the details of the story don't lend themselves easily to humor....except possibly, gentle humor by someone who knew the people personally.

The hairy chin remark 'could' be, depending on, as I said, timing and context and how well you knew the woman and how well everyone else knew her.(Being 'acquainted' is different from being in a peer group which has established a personal understanding about humor).
Teasing someone about appearance can be delicate. 'Weight' jokes, jokes about handicaps...etc, are often funny when made BY the brunt of the joke, but made by others are done on thin ice.

...*disclaimer*... one man's opinion. YMMV.