This is what I think having gone through this in October, we so appreciated people who dropped off a meal.. not many did that, but a cousin and friends did and we were so appreciative.
Also.. a plant, I have plants that people sent that I have now that give me comfort.
One more thought here.. once the services are over and everyone gets back to their lives and people think you should be healing and getting over the loss, to me that would be the time to send something... just a little something, a note, a card, a perennial to plant.. to let that person know you have not forgotten their loss.