I think Tim Wells made his nut in the video. Is that correct Tim? Looks good Tim.
I have knurled nuts. They are $6 each. Tom White that sells the power hone has them too. I don't have them on the site but been meaning to add them. For now if you'd like one you can send a paypal to my email for $6 plus $1 or $2 for first class shipping. If you have a lathe and would like a project, the thread is a common 1/2"-13UNC