I'd have a custom made that had the best technology at the time that's small enough to fit in my pocket and keep updating it as newer and better technology came out. It would be made out of plastic or titanium, have a clickie tail switch, be water resistant to at least 100 feet, have a Pyrex lens, machined reflector, LED bulb (regulated), take lithium or rechargeable batts, have the options for clip and/or lanyard attachments, and [insert wishlist here /ubbthreads/images/graemlins/grin.gif].