So i painted my tail bezel black a couple weeks ago...
painted the whole bezel including the flasher reflector
at night the flasher was perfectly lit... in bright daylight not so much, only a tiny bulb barely visible
so i decided to have the smaller brake light be the flasher but still being a constant light while not flashing
total cost around: 15$
bought some 5 pin relay (spdt) and wired this all up under 1h
Amazon.com: Absolute RLS125 12-VCD Automotive Relay SPDT 30/40A: Electronics
Downside:
the flashing is off from the other flasher but its not really noticeable (unless you insist on keeping the amber flasher, but a red flasher is totaly legal)
the relay make a bit of noise but nothing annoying
cant lock my door if flasher is still on when i turn off the car (took me a a couple minutes to figure this out... but easily avoidable...)
here the result
will test out tomorrow in the daylight
painted the whole bezel including the flasher reflector

at night the flasher was perfectly lit... in bright daylight not so much, only a tiny bulb barely visible
so i decided to have the smaller brake light be the flasher but still being a constant light while not flashing
total cost around: 15$
bought some 5 pin relay (spdt) and wired this all up under 1h
Amazon.com: Absolute RLS125 12-VCD Automotive Relay SPDT 30/40A: Electronics

Downside:
the flashing is off from the other flasher but its not really noticeable (unless you insist on keeping the amber flasher, but a red flasher is totaly legal)
the relay make a bit of noise but nothing annoying
cant lock my door if flasher is still on when i turn off the car (took me a a couple minutes to figure this out... but easily avoidable...)
here the result
will test out tomorrow in the daylight