ScriptWars - if you can't win you're not ready to join the elite(yet)!
It would be fun to have a challenge with a basic set of tasks to complete but not know what curveball is thrown in when you go to run it. Example: the script challenge calls for running towards a chest, opening it and picking the right item but when you go to run it the chest had been locked down, raised to the 2nd floor and unlocked so it floats up there. You can't open it while up there but you can drop it to your feet and then open it. Thinking about what could go wrong drives you to make better code!
I love challenges like that. Heck all of the coding I've learned and done has been a challenge since I SEE what elite's are doing and I wanna too!
edit: or it can be a more practical challenge, like sorting out all these bod types that sneakily don't tell you what craft they are for in the #property(not counting the actual item). Basically work to finish a type of script that is missing from the script library for non-elites. I dunno, just throwing out ideas.