Would you like the selection of the objects to be user-configurable or per-site?
Currently, only circles of various sizes are falling down. Would you like to be able to let other symbols fall down as well or have a more advanced simulation of the effects (sparkling stars, rolling lightning)?
PS: My first thought was to use HaveIBeenPawned to enable the lighting + dark mode if 20% (red background + flashing lightning for >50%) of the passwords in your DB have a bad reputation but that seems a bit too much for the next version .
Do not take me too serios here .