As I look at those, I wonder if they couldn’t be used as LST devices on a plant? If one arm were extended, it might be even more effective.
I saw something on another thread (that I can’t find at the moment) to do that. I thought I had bookmarked it, but apparently not. The person sells them on Etsy. 
Edit: You can see a couple of styles in the third photo down, No more small pots! - #66 by ColForbin