Biggest guy I've ever fucked -- I'd guess about 10 inches with above average girth for his length. He was about 5'9" with averaged sized feet and hands. (Army man too... drool...) Claimed to be a Russian American mutt. Best cock ever, he was so dominant and rough with me.
One of the smallest guys I've ever seen in person was 6'6" 400lbs, about a size 14 in shoe and large hands. Was about 3-4 inches hard and average girth for the size.
I've found no connection with penis size and any other physical characteristics, whether it be hands, feet, fingers, or nose.
i wear a size 12 (or 13 if they run small) and i'm 9x6.
i have huge hands. some women's hands only cover my palms, which looks hilarious. only met 2 or 3 guys with bigger hands than me.