Rob's concrete block

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Rob brings in a shoe box full of concrete, complete with cat paw prints. Greg comments that Rob is from southeast London and, imitating his accent, exclaims “Bish-bash-bosh, fill it full of concrete”. The box weighs 9.3 kilograms, earning Rob second place.

(Written by JoGo and proofread by Karl Craven)