Thanks for the link. I've been looking through these subreddits too, there's some neat stuff there:

https://www.reddit.com/r/Lightbulb/top/?sort=top&t=year

https://www.reddit.com/r/SomebodyMakeThis/top/?sort=top&t=ye...

https://www.reddit.com/r/AppIdeas/top/?sort=top&t=year