Col,
I must have missed your first post, so welcome to the AWGB Forum form Dr4g0nfly, we trust this is the first of many posts you'll make here.
I do like the first two, they have a distinctive grain pattern, have they some spalting in them. The colour of the third is very different as well. Do tell, what are the timbers and dimensions please.
And if you've noticed we are currently running a 'Home-Made Tools' thread. Would you care to put up a picture of the tools you made for the captive rings?
Bryan.