I have seen some off the wall stuff. Some of it just absolutely fabulous and some down right dangerous/inappropriate/being performed poorly or just too blah.
As a professional I try hard not to judge what others are doing because I do not know what the client’s goals are and what their current abilities are. I’ve been known to have jousting matches with clients using foam rollers while standing on a bosu on 1 leg! Some may say this is off the wall. I look at it as a fun way to break up a boring workout and I use this only when I know a client has the ability to do this safely.
So I guess if you want just the run of the mill stuff you can get that from most trainers. Personally, I would be bored.