What are some ideas to make tethers more noticable in the day, and especially at night?

In terms of conspicuity of AWES Systems and also when considering the human environment such as in

How about when we have a flashing light on a looping AWES…
Does it have to be a regularly timed flash or…
Having the majority of light flash visibility above the top surface of the AWES and only at the top point of the loop… This would likely have no effect on the ability for air traffic to spot the kite yet would also reduce the impact on dark sky environmental enjoyment on the ground.