Moving/shipping Avantgarde speakers

I am in the process of selling my lovely Avantgarde Duos. I no longer have the original packaging and wish to insure they are babied without being scratched when they are being moved.

For those who own or used to own Avantgardes and have shipped, moved with, or sold them to someone who picked them up, how did you or the buyer insulate and package them? Suggestions very much appreciated. Thx!