Well, I thought I had seen all forms of planking there was to see. I was wrong. Check out this old dude, who does some pretty nifty balancing and actually 'planks' on a bottle - and get this, he's 80 years old!

Man, even if I was like 100 pounds lighter, 18 years old with ropes attached so I couldn't fall, I would still bust my ass. This dude is 80 years old and makes it look easy.