The Shiney Lounge's wire clasp tutorial has a lovely coiled wire detail for the eye part. I rather like the wrapping on the hook side as it means you are only forming one loop. If you try and form two loops together with your round nose pliers, the loops aren't going to be the same size because of the conical shape of the pliers. So it requires a bit of fiddling. Works best with bail forming pliers for that reason.