Okay, the next step is to add other whammy bar effects to the stew. First up is the regular “hitting the ol’ wang-bar”. As you release the whammy bar, you just hit it again, slightly depressing it in a rhythmical fashion. What note value you choose is up to you. Just take my examples for what they are, examples. This is the reason you need to have a pretty fixed whammy bar, and use straight fingers.
After that comes the old Steve Vai “flutters”, where you snap the whammy bar upwards as you slap the harmonic. This effects is MUCH more audible with thinner strings and fewer tremolo springs.
Finally, you see an example of using several tones at once, so experiment and find your own cool ideas!