When I was still in school Microsoft would show up like once a semester and throw a "Build an app party". They'd give you like 90% of the code and files need to make a really simple slot machine app (no real money, if you ran out you tapped the get more coins button or something). It took like 15 minutes to finish the app, and if you published your version in the MS app store they'd give you like $600 in free MS hardware right then and there.

It was great, I did it every semester.