I've seen a variety of marble runs around the net - today I'm sharing our version.
Instead of marbles, Big One suggested that we use Gogo's Crazy Bones - do you know them? - we have a small collection of these.
The game works like this. Each player picks five Gogo's (or marbles). If a Gogo makes it through all the tubes and lands in the box, it scores full marks (6 points). If it doesn't land in the box, it is disqualified. If it lands in the box, but it misses a few tubes along the way (it happens), simply minus the number of tubes it missed off the total score of 6. Keep tally and the winner is the one with the most points at the end.
The little yellow Gogo (can you spot him?) was unfortunately disqualified for missing the box :(.