Eva tries to build a milk slide
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Eva decides that she is going to build a slope for the ball to roll down, but gets fixated on the idea that it must be built from milk cartons. She has Mark cut a wheelbarrow full of milk cartons in half, while she fastens them together using tape, clothes pegs, and paper clips, creating a cardboard chute down the steps in the garden. She then places the glass ball at the top of the chute, and tries to wash it down the chute by pouring all the milk from the cartons down it from a large bucket (while Mark sits at the bottom, for some reason wielding a leaf-blower). Unfortunately, the ball only makes it as far as the second step, and her time is recorded as 2.32 seconds, earning her fourth place.
(Written by Karl Craven)