Expecto Patronum is one of the most beautiful VFX, that was created for the film Harry Potter.
You can also find this Visual effect in movies like: Lord of the Ring, Avatar, Narnia, Alice in Wonderland, Van Helsing and many more.
Again we teach you the secrets of the movies, with best 3d program, cinema 4d
Now with the excellent plugin turbulenceFD This effect is perfect for TV spot, especially in Christmas. You can use any 3d object cinema 4d, also, can have animation.
The last part you can find