This years Flashing Light competition is actually to make something with neon flash at 1Hz with a 50% duty cycle. The closing date is the end of February so still time to get building.
This is my entry: 
https://youtu.be/Pqt-0D1_HH4  with guest appearance from a 200W SLI/H  
 More on the competition and other entries at: 
https://www.flashinglightprize.com/