I don't know, Dave, that seems terribly limited and boring. It has potential, if someone did one of those fruit hats, but I think the goal of a challenge, really, is to get a final product that you could use as a portfolio piece; a hat or helmet isn't that awe-inspiring to employers.
But that could just be me.
Maybe a small current-gen (or past-gen) environment?
Open-ended is generally the way to go if you want people to enter.
And, well, it would drive me to make a lovely environment. And others, I should think.
Either way, a decision is in order, haha.