I’m still working on two signal whips, which are frequently referred to as single tail whips. Technically any whip with one lash is a single tail, so that could be a bull whip, stock whip, snake whip, etc. However when someone calls or emails me asking for a single tail whip they’ve always been talking about a signal whip.
Here’s one of them almost finished:
This one just needs the wrist loop and knot put on.