SO Sorry to hear about your situation.

There are some good resources at this link:

http://www.hospicenet.org/

Also, at this time of year there are a lot of benefit rides, walks, and fun runs. Would it help to do one in each of their honor?

Rent all of the funny videos that you can. Celebrate the last of their lives with them. It sometimes seems so unfair that life keeps moving on while someone is dying or after someone has died. I think that would be the most difficult thing to deal with as a terminally ill person. Sorry, wish I could help more.