I searched, and I got a million hits for threads with 'brake' in the title.
But nothing related to what I was looking for.
I'm thinking the first mod on my Silverwing is going to be a set of LED brake blinkers. They are accessory modules that stick or bolt on somewhere that blink for the first 5 seconds or so that the brakes are applied, so as to wake up the cager who might rapidly be approaching me at a stoplight with her attention on her cell phone.
My biggest fear when riding is being rear-ended at a stoplight, followed closely by being hit by a light-runner or cut off by a left-turner.
I remember seeing a few options in the aerostich catalog; one was good, the other was unreliable.