What do I have to do to get a Memorial contributions started in memory of my nephew that past away last September. I want to do this for my sister and my mom and dad. :(

Perhaps you can get some friends together and do a car wash. There are many activities that can help you raise the money.
Make a sign indicating what the activity is to benefit.
"Help John Doe with a kidney transplant. any gift would help"
Or something of that sort. Good luck