I was testing a new powder, getting some velocity numbers, and I clipped two of the aluminium rods on one side of my Prochrono chrony. No big deal, 6mm aluminium rod, just a stop at the hardware on the way home.
Moving over to the dustbin on the range, getting ready to drop my trash in, and there is a demolished Prochrono body with the aluminium rods and reflectors intact.
Happy co-incidence, I salvaged the rods and reflectors. Motivation to upgrade to a radar unit.