someone should try a variation of 3a…2 handed counterweight yoyoing. if you have already or are going to do this, please post a video! that would definitely be fun to watch.
Been done. that is 10a/13a/8a
most of what you (or I) can think of has been done. IMO some styles like 5A are “underexploited” as it is now.
but still, cool stuff to see, I’d love to see 13b with double dice ^^