Hi all
yes, our European buckle collar is a fishtail. The main body is tapered and on one end is a buckle and the other is the tongue. It's not a stock item but we can do them custom. We have started making them with the same tapered body as our martingales and riveting the buckle and tongue on each side. We have done this at events with an existing martingale by riveting the buckle and tongue onto the figure 8 hardware that the loop normally goes through. On a custom order there is no hardware on the ends, just the buckle and tongue.
This listing is actually for a very large (like pit bull sized) dog but it shows what I mean.