Does the Aussie met bureau use pale pink weather balloons, and if so do you want your radar reflector (found littering our study area yesterday) back? ;-) Or does it sound more like NZ Metservice litter, in which case I should hassle my bro about it instead... Unfortunately no expensive measuring or telemetry equipment to ransom off could be found.
I don't think ours are pink, and would be pretty amazed if they got to NZ anyway. We don't expect to get the equipment back from the balloons we do launch.