Ok, this is an example of shibori. It's a type of Japenese tie-dyeing. There are several kinds of shibori. This pic here illustrates a particular technique called kumo shibori, a pleated and bound resist which makes a spidery design. Gorgeous, no?! I don't necessarily know what I'm talking about
The tutorials I found are here and here. Just Jussi's tutorial covers a scarf and a couple other processes; Betz's tutorial is called (I love this...!) "Shibori Felting for Scaredy Cats"! I haven't tried either of them yet, but from a complete dummy's eye, they are well written, with great pics and easy-to-understand steps. Right now my husband is STILL in recovery after I set the stove on fire (is there a Stoveaholics Anonymous?!) so I have to wait. But I'm open to everyone's comments!!