Twist the screw eye pin into the cork stopper and then unscrew it. Put a drop of super glue on the screw eye pin so it won't come out. Then screw it back into the cork stopper before the glue dries.
Fill the bottle with the pearls. Put a few drops of glue on the sides of the cork and push the cork into the bottle.
Attach the cellphone strap to the screw eye pin and enjoy. :)