I've started sometimes pronouncing ers and erm differently. I don't say it like urs and urm anymore, it's more towards airs and airm. I think it gives it its own flavour now.
Also,
After considering the feedback I've received (not just on this forum), which was around wanting more than just a new set, wanting something that already exists (& familiar) and giving it more power, I really really think that the following (existing) set is the best there is:
[ey, em, eir, eirs, emself]
it's essentially exactly like [they, them, their, theirs, themselves], but no 'th', and it's singular.
So with this, you don't have to say (in example) 'What do they want?', you can actually say 'does', and make it all singular (what does ey want).
I'm considering perhaps using it, at least when writing, because the one I created works well when talking, but seems people want to see something familiar, and I want to consider others too, so I think this would be the set to really promote, in my opinion, especially that people have already started using the non-singular pronouns. Why not make the singular version the go-to?
What do you think?