I usually finish my scarf edges with embroidery. Do you want to know what kind embroidery it is? 

Follow the pictures....

First I pull up threads from the edges of the scarf as you can see at the top three pictures. 

I baste the edges toward the line formed by the pulled threads

Here in this scarf I used a coloured tread matching one of the colours in the design.

First I take a tiny stitch from the rolled hem. 

Then, I take few treads (2mm) from the main body of the scarf where I pulled the treads.

It takes a lot of time and great patience to finish a scarf this way, but I love it.