there is a tutorial pinned in braiding on turksheads...in the example shown at the beginning of this topic the center knot is a pineapple knot, which is a turkshead with an interweave, done over a bead to give it size and shape. then the two knots that are on either end are simple spanish ring knots. ring knots are very easy to do, hardest thing is not breaking the lace when you tighten them . then you simply use smooth jawed pliers to make them flat and push them up against the bead.