Adam, Longstrider is one of the UK's cutting competition instructors & a serious competitor himself. I'm bringing my comp knife as he suggested having a bit of fun 'on the side' so to speak & figured some of you migh like a go.
Basically, you can use a knife limited to max. dim's of 10" blade, 5" handle, 2" height in the blade. No limit on width. It MUST have a lanyard (although that can be improvised - my Parachete has some paracord tied around the choil, for example).
And then you cut stuff. Rope, beer cans (don't worry Dale, no beer is wasted. We'll fill your empties with water), tennis balls, golf balls, jelly babies (they're seriously hard!) an anything else you can think of really.
Daft but lots of fun. :D