Tip: When determining a time limit, remember that players won't be as familiar with the level as you are. If you normally complete the level with the timer around 100, others might run out of time on their first try.
SevenFiles linked me to a thread from Winter 2019 C3 where ThePat545 made some videos. As I don't have anything else in mind. I guess I could make this. Sorry if this thread isn't as good as others.
Video 1 - Buzzy's World Tour by Stiviboy: So yeah, this is Buzzy's World Tour, an awesome hack where you play as, obviously, Buzzy. The story can be found in this video so if you don't want any kind of spoiler don't watch it unless you've played the hack or don't mind them at all. I will upload more later.
Video 2 - Just Another SMW Hack by Classfan: An interesting 4-world Demo hack which has a decent level design. No story yet. Also, that title screen music!