The homemade set of deflectors I made are from simple materials and were fabricated at home using basic tools. The deflectors are secured to the mirror mount using the mirror bolt itself.
These were made to fit my 2003 V Star 650 Classic.
Materials used: Aluminum sheet (I used .030' aluminum that I scavenged from a decorative lay-in (24' x 24') architectural ceiling panel; 1/8' x 1' flat aluminum bar, small nuts/bolts
Tools used: Sheet metal shears, hammer, clamping bench (I used a Black & Decker Workmate), steel pipe as form for panels, Dremel tool or file, small clamps, drill, bench vise
(Update: I know these look bulky and all, but it was an experiment. Please see the improved, revised, updated design at http://www.instructables.com/id/Motorcycle-Hand-Wind-Deflectors-version-21/)
Step 1: Make pattern and cut sheet metal
Transfer the pattern to the sheet metal. I used a nail.
Cut out the shape with sheet metal shears, leaving approximately 1/2" extensions on each side. These extensions will be folded over to create a stiffer panel. The rounded corners do not get extensions.