It's hard to give good examples. When you play one character a lot, they don't seem to be as flashy to yourself.
I guess overall, I do a lot of autocanceled aerials and zip around in confusing ways with QAC. It kind just looks like I'm sliding all over the place while throwing out attacks.
What I like to do most though is footstool people and zip down with QAC, then either QAC lock or jab lock. It's difficult to do and pretty situational, but it's awesome when it happens.
Sometimes I do weird things for no reason. Like kill somebody off the top with thunder while offstage, then side-b under the stage to the other side and QA back up. There's no point in it, but it's more entertaining than just QAing back to the stage normally.
Meh, I just play in kind of a stranger way than most I guess.
The people I play with regularly are probably used to all this junk already, so it's probably not that flashy to them anymore either.