Amazing how even simple incentives work.
I teach a Senior-level marketing class at a large state school. Over the weekend, my six teams of 4 apiece were tasked with coming up with business ideas based on SpaceX's 75$/Kg to orbit data. They are allowed to send anything they want to orbit for 75$/Kg.
I have a bag of dollar-store toys that I use for prizes in class. Once they knew there was a prize for first place (judged by their peers) they went from competitive to ruthless. Covering their mouths when talking, hiding in the corners of the classroom, taunting the other teams, etc.
Their final deliverable (along with their content and slide deck) was a 2 minute pitch video that they had to create. I gave no guidance other than what needed to be in it, but they had to figure out how to make it.
The winning team was space-based pharmaceuticals, but that wasn't the funniest. The second place team, "SpaceDeath" would launch your remains into low-Earth orbit and have you burn up in the atmosphere for the price of a traditional cremation. Their presentation was hilarious.
Anyway, the winning students got to pick from the prize bag without looking. One got a keychain laser pointer, one got a Tesla Matchbox car, and one got a glowing bracelet. The envy in the classroom was palpable:)