I used 2 stacked disc-shaped rare-earth magnets to attach the USB-A end of the cable to Euroshield roof's snow guard which is made of ferromagnetic steel. I then attached a golf ball to the Lightning end of the cable to keep the cable straight.
Artificial icicle is slowly building up to become fatter and fatter as ambient temperature hovers around the freezing point of dihydrogen monoxide (H2O) at around 273 K.
I am longing for ice storms with freezing rain so that induced icicle would grow to become majestic ice column like this masterpiece artwork by prominent Canadian artist Véronique Sunatori, MFA, BFA.