Ante imitates a fish, a mixer, some crisps, and a guitar
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
In the first round, Ante has to imitate a fish. In the second round, he has to imitate a mixer. In the third round, he has to imitate crisps. In the fourth round, he has to imitate an electric guitar. Upon retiming the final round, it is determined that Ante's instrument was guessed in 3.4 seconds. He therefore wins the task.
(Written by Jenny R and proofread by Karl Craven)