Use two aluminum cake or pie pans. Place 5 or more marbles in each pan. Cover with equal amounts of ice cubes in each pan.
Two players then remove their shoes and socks and race to try and get the marbles out of each pan using only their toes! No spilling ice or knocking over pan. The first to get all the marbles out of the pan wins.
You can also make this a relay by having an adult put the marbles back each time.