411 REFERENCE · Wikibooks
Rope Making for Bondage Use/Stopper Knots
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
thumb|1. Overhand knot on twisted rope, 2. Overhand knot on untwisted rope, 3. Thistle knot, 4. Matthew-Walker-knot, 5. Two wall knots (f.l.t.r.) on 6mm jute rope
thumbnail|stopper knots for the end of bondage ropes, and thistle knot tutorial
At each end of the rope, you should tie a stopper knot. This not only prevents the rope from getting untwisted but also helps to make shibari style rope extensions. Knots typically used for this purpose are Overhand knot, Thistle knot, Matthew Walker knot and stacked Wall knots.
An Overhand knot is thicker and easier to open than the others, which also means that it can get undone unintentionally while tying. A good compromise is doing an Overhand knot on untwisted rope. That version is less likely to get undone unintentionally but you can still open it in case you want to repair the rope.
It is also possible to finish the rope with something non-stopping, but then you can't make shibari-style rope extensions with it.
External links
Overhand knot: http://www.youtube.com/watch?v=Q37qX9aDj9c
Thistle knot: http://www.youtube.com/watch?v=GoVu1wr_0iI
Matthew Walker knot: http://www.youtube.com/watch?v=_QTNluJzsZw
Wall knot: http://www.youtube.com/watch?v=KSjF3AgbUW0