I have had lots of interest in my scarf so I thought I'd write how I did it.
Give it a go....
Use matching needles to yarn ply. Not a tight finish.
You also need a stitch holder or large pin for every group of 8 sts.
Cast on 32 / 40 / 48 sts. (Multiples of 8) *** mine was 40sts & about a 12ply yarn - 5.5mm
Work as far in garter st as you want. I did about 48rows.
Measure the width of work. Across the sts.
Now have your pins/holders ready. Don't be scared.
TAILS...... Only work on 8sts.. either garter st or stocking st.
Work until this is about 1 inch shorter than the measurement you just took. Now put them on to a stitch holder.
Repeat this for every group of 8 sts you have.
Now. Put them all on to one needle and knit for 18" - 22" depending on how tight you want it around your neck.
REPEAT....
TAILS..... Only work on 8sts.. either garter st or stocking st.
Work these until the same length as the first group of tails.
Now put them on to a stitch holder.
Repeat this for every group of 8 sts you have.
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WEAVE THESE TAILS IN BETWEEN THE OTHER TAILS AT THE OTHER END. Be careful not to twist the tails.
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AGAIN....
Put them all on to one needle and knit for the same amount of rows that you did at the beginning.
CAST OFF.
You can add tassels if you want to.
Here is a tutorial as well.