I think I found something worth mentioning (Credit Please)
http://www.youtube.com/watch?v=eMYdJXeytVo&feature=related
Please look at 1:07.
Instead of grabbing the edge, Wolf cancels the edge and ends up standing there.
I found a way to consistantly do this with Pikachu.
Go on FD (only stage I tested this on), and wall jump. The wall jump should lead you right beside the edge. Before you end up grabbing the edge, you should end up standing near the edge. From here you can do any attack.
Make sure to QA as close to the edge as possible.
Also, if you check the video at 2:04,
Pikachu can do that too.
If you do the same thing as above, you will sometimes end up doing this (Needs more testing) This can be used to edgeguard or edge hop, or even for flashyness.
Right now, I do not know how to consistently do it, but I think this can make Pika look even flashier.
If someone could try this and help us distinguish to properly do both forms of ledge scarring, please post.