Marko tries to MacGyver the task

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

Marko thinks for a moment, then says he wants a candle. He sources a small taper candle from somewhere, and takes the brick and candle into the shed. Comparing himself to the TV character MacGyver, Marko sticks the candle in one of the brick’s holes (supporting it with a toothpick, which also seems to keep the ribbon away from all but the base of the candle) and shuts it in the shed, with the tethered balloons floating outside. His intention is that the balloons won’t be released until the candle burns all the way down to the bottom. The rest of Marko’s footage is dedicated to the two men yelling across the yard to each other about how the task is going (Marko is sitting in the caravan and David is shut in the shed). Marko’s device is a success, and the balloons are not released until the candle is almost completely melted. Marko delays the launch by 9 minutes 54 seconds, and wins the task.

(Written by Jenny R and proofread by Karl Craven)