Katherine wishes her hands were her feet
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Katherine initially shook a TV aerial, then put an elastic band around her feet and got Alex to try and catapult the shoe from her feet, which she thought actually worked. She then broke a garden arch trying to make it act like a catapult, before announcing she wished her hands were her feet. She eventually taped a snooker cue to the garden arch, which she balanced the shoe on, to catapult it in, having to maneuver it around an electrical wire. She catapulted the shoe in 32 minutes and 45 seconds.
(Written by Taskmaster Wiki contributors)