Center the button on the pendant finding and mark the hole locations with a Sharpie® pen. Punch holes in the pendant finding.
Tie the button onto the pendant finding in a criss-cross pattern. Secure the knot in the back with glue.
Use a 10mm jump ring to connect the button pendant and the lanyard hook.
Wire-wrap the crystal dangles as pictured; use a 4.5mm jump ring to attach the three dangles to the lanyard hook. See Basic Jewelry-Making Technique Sheet (PDF) for step-by-step instructions on making wire-wrapped dangles.
String the button pendant onto the ball chain and attach the clasp.