Sian chucks the eraser in a bush

Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!

Sian initially tried rubbing the eraser against the table, before deciding to set fire to it. After the fire did not do anything, Sian threw it into a bush. As Alex could not find the eraser, Greg accepted that it had been erased after 9 minutes and 40 seconds.

(Written by Taskmaster Wiki contributors)