Planes could arguably be considered a type of dart.
From memory, there was a small block of sticky tack, a roll of transparent tape, four or five pieces of paper, and a couple of paper clips.
Everyone else made various traditional paper airplanes; a few people used the paper clips to good effect to adjust the center of gravity to get a longer glide slope. I just wadded everything up into a piece of paper, wrapped the other pieces paper around it, and wrapped the whole thing in transparent tape (which I had already removed from the core, because the core was inside the ball).
I just threw it as hard as I could, and it ended up going more than twice as far as anyone's paper airplanes. It probably helped that we were competing outside and throwing into a gentle breeze.
"How far can a human launch a projectile?" is a different question from "how far can you throw a paper plane?" I'm okay with both of them being competitions, but they are meaningfully different and drive meaningfully different outcomes.
In this example there were constraints, and they were designed within. You just don't like the result.
In this instance I'd say it's funny and a bit creative, but way less creative than the other participants trying to build actual paper planes.
I think all this achieve is proving to the people who wrote the rules they made a mistake. Rules will hopefully be updated, so value is not zero, but it's not really what the spirit of the competition was about.
The only instance I admire this thinking is when the "wrong" rules are not written by humans but rather preexistent. If someone manage to find out the understanding we had of the rules was wrong and finds a quicker solution because of it, that's amazing.
Or, student wins paper airplane contest with paper rock.
Haha