Fill a sturdy, fist-sized bag up with sand and secure it to the end of a selfie-stick length pole. Swing the bag at your eye as hard as you can. Might want put some kind of protection over your actual eyeball since you may need to give it a few thwacks. That or ask strangers to punch you in the eye 'til one of them does it but then you'll have had help.
Fill a sturdy, fist-sized bag up with sand and secure it to the end of a selfie-stick length pole. Swing the bag at your eye as hard as you can. Might want put some kind of protection over your actual eyeball since you may need to give it a few thwacks. That or ask strangers to punch you in the eye 'til one of them does it but then you'll have had help.