Temporary: USB-C to USB-A Adapter [integrated with USB-C cable] -> library/airplane/Communauto
Carried separately: Anker Power Bank (PowerCore Fusion) or Plugable Dual USB C Charger Block [iPhone + MacBook]
Potential Discovery or Invention
After a couple of years, the ping-pong ball was destroyed when it was dropped to the floor. It is still the lightest-weight option.
Potential Discovery or Invention
Here is the FlipZip Magnetic Quick-release Phone Mount System, which does not have features like MagSafe charger, USB-C cable, adjustable-length lanyard, switchable-orientation stand or variable-viewing angle.
Potential Discovery or Invention
Since I switched iPhone 12 ("Up to 17 hours video playback") to iPhone 16 Plus ("Up to 27 hours video playback"), frequent battery charging is no longer necessary. Therefore, my iPhone Stand/Lanyard is greatly simplified with Phone Lanyard Tab, keychain ring and FREE name tag tether with clip from a trade show.