I had one idea earlier that might seem appropriate, given Steel's interests and the month:
You know, I don't know if this would have any interest, but I have heard that this month is NaNoWriMo or something like that, and I know Steel was interested in it last year. Perhaps you guys could get together and write something for that about Steel and your memories of him, something you guys could share with GW and/or his family?
Just a thought. *shrugs*
What are some other things that you guys can think of, in order to honor his memory?