Shake text to where each letter is individually shaking?

I want to do an effect where I make each letter in a text object shake / vibrate violently. What's the best way to accomplish this?

I assume that I make each letter a separate text object, but I don't know where to go from there. Object-shaking (non-camera) shaking is something that actually seems to not be touched up on enough.

I tried downloading a custom plugin but it didn't work with multiple objects.

I would assume spawning many spritefont objects which then you can move separately (either through behavior or manually). You could for example use the sine behavior and set the cycle position for each further letter a bit further into the sine cycle.