Somehow I've never had to make a sympathy card yet and it's really difficult. Our next doors neighbors (whom we are very close to) lost their mother, who we all referred to as Grandma. I wanted to make something nice, but not too solemn because I personally feel that while death is very sad that the person's life should also be celebrated.
I used two flourish stamps I had and arranged them so they met in the middle. Then I added some pretty Primas and a few pearls for an elegant touch. Hopefully it's a nice sympathy card, if there is such a thing.