Fernando makes the scales read 70lb
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Fernando brings in a few heavy items and finds out they weigh just under 20lbs. He leaves the room and comes back with a mini fridge, presumably from his dressing room. Fernando begins adding what appear to be walnuts to a box on top of the mini fridge to increase the scale weight in small increments, and eventually hits 70lbs. Fernando completes the task in 7 minutes 21 seconds and earns second place.
(Written by Jenny R and proofread by Karl Craven)