Martha uses bin bag guttering
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Martha starts out completely stumped about what to do, and ends up taping a roll of bin bags together to create a gutter system that she can pour water down, from a watering can. Unfortunately, this gutter is pretty flat, so most of the water ends up running off the sides. However, a small amount does apparently reach the rose, so her attempt is approved. With a distance of 11.3 metres, she earns second place.
(Written by Karl Craven)