Eva uses a smokescreen to make a house disappear
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
After reading the task, Eva immediately asks if she can get a smoke bomb. She then asks if she could dissolve something in acid. She settles on making the Stormester house disappear through the use of a smokescreen, obscuring the camera's view of the building. She then holds up a photo of herself standing in an open field, to create the illusion that the house behind her has disappeared. Lasse awards her third place for her effort.
(Written by Karl Craven)