I've never completed any of these monthly challenges and I haven't really posted much here, but I just saw this month's one and it sounds cool! I'm always inspired by the projects people post and look forward to giving it a try when I find the time.
I thought of doing something that was inspired by Mario Galaxy, maybe take one of their joke comets and do my own spin:
Or maybe spice up one of the star chunks that flies into the ground and explodes into a few stars:
Or maybe something in between! I think it would be fun to do in Unreal and play around with the collision effect with blueprints.