I'm new to this, having got Dixie Dooley's DVDs a few days ago, but I thought I'd share something. I may not be the first to think of this, but when I went to buy a chain to make my own "German Transport Chain," I couldn't find an easy way to put on the rings. I don't have an arc-welder, and I would probably burn my eyeballs out if I did (if that's even what you'd use). I ended up buying anchor shackles and a moderate-size chain, small enough to fit snugly around my wrists, but big enough to look very solid.
What I found was, after I got used to looking at them, the anchor shackles look much better than simple rings. They're sturdy, old-fashioned and oddly suggestive of a restraining device, as opposed to something off of a canine choke-chain. And the best part is, though they have a bolt that screws in through the open, squared off end (they're like a rounded horshoe with a screw bolt through the open end), this bolt can be secured with loc-tite (or super-glue) and made more or less permanent. But because there is a bolt, it's a great piece of misdirection--the few people I've done this for immediately want to examine the bolts and think its gimmicked. Something about it seems much more sneaky than simple hoops, in my opinion. Yet they look redolent of tiny darby cuffs, in a way, creating the effect of something more than they are.
Just thought I'd pass that along. It's a pretty cheap way to set up your own Siberian Chain Escape with a different, and in my opinion, classier look.