How about a piece of wearable art to hold scarf or shawl in place? 
This magnetic pin is a piece of jewelry as a shawl pin or scarf pin.
Or can be used alone, or as a closure.  Will not pull, snag or poke a hole in any fabric.
These are buttons, an antique belt slide and dorset button base just for that purpose.

Made in the USA.  
Smoke free, pet free.

Please contact for more details.