Take two headpins and on each add the larger Swarovski bicone first, then follow in size order the other two.

Now with the round nose pliers grip the top of your headpin where the Swarovski bicones finish and turn making a small loop at the top on each one. Cut off the excess wire using the side cutter pliers. 

Now add a jump ring to each using chain nose and round nose pliers to separate the jump rings creating a gap add one to each drop pendant and attach to the ear wire closing the jump ring to secure.