I just purchased one of these for the Fiesta ST after someone on Reddit shared it. This is the knob option on 2016 Focus STs. Can't wait to see how it looks on the Fiesta.
http://www.ebay.com/itm/13-thru-16-...ash=item25baa1fa31:g:M1EAAOSw-YBXF-Uu&vxp=mtr
http://www.ebay.com/itm/13-thru-16-...ash=item25baa1fa31:g:M1EAAOSw-YBXF-Uu&vxp=mtr