Haiku beam is the haiku if you follow. So the answer is not that I have seen but maybe someone else has modified something in a Mule head with a reflector but I doubt there is room etc. not as an offering from Don however.
I miss the Ti-PD. IMHO, the most pocket-able and cleanly designed of all the lights. Small enough to carry with an incredibly versatile beam. That's what I've been searching for the last 5 years.