I started by dyeing the scarves a base colour because they started out white and I didn't really want any white on them.
Then I shiboried them. That basically means I tied them, folded them, creating resists that the dye could not penetrate. I did a few testers to see which method looked the best and some were really nice - others will likely be over dyed. Below are two scarves, one started out blue and the other yellow.