Falling leafs, snowflakes, flowers or wathever you want :).
Demo video
And there is a Pro version of this plugin, with many additional features:
- choose which object fall (custom and multiple icons allowed)
- quantity of objet falling
- speed of the object (can be random speed)
- 3 possible trajectories
- define on wich pages or custom urls the falling things appear
- define on wich period the falling things appear
- multiple profils (ie: one for summer and one for winter)
More informations and demos here