Welcome to the breakdown for my SCR-300 Radio project, which you can find here https://www.artstation.com/artwork/4NyPOl
there may be an easter egg in here... who knows
Here's the demonstration of the antenna oscillating
The straps aren't baked into position, I merely used a few simple deform + curve modifiers to make them come to life (no rigging was involved)
Here's an extremely sped-up video of the modeling/texturing process until I started making the scene in UE (had to stop recording cause the amount of videos and file size was becoming ridiculous).