I chopped my shifter and took the square out of the boot. Just get a black zip-tie and feed it through the top of the boot where the square used to be, pull it tight and cut off the slack flush. It will hold the boot inplace, and no one will be able to see it unless they know it is there. If you need to cut it off to replace the knob or get at something, no big deal, just replace with a new zip tie.
