As I write this, Suffusion 4.0.0 has been approved, but hasn’t yet gone live. In the meanwhile I decided to have some fun around this site. I put together a page that talks about the witty side of Suffusion, wherein I introduced a term “Suffu-scion”, for a child theme of Suffusion. I decided to go ahead and create a Suffu-scion and make it available for use.
I have embedded instructions in it and have created a dummy folder structure for your use. Feel free to use this as a starting point for your Suffusion customizations requiring the use of a child theme.
Also, if you have some more lingo to add to the witty side, do let me know.