Restone Ideas Needed!

hey guys. So everybody knows that when they want to build something cool or useful with redstone, they go to Youtube. Well I want to do a tutorial like that, but I have no ideas. It feels like everything has been done, but I want to make a redstone contraption for everyone that's new or an improvement on former ones. So if you have an idea, but you're not good with redstone, post a comment with what you want, and I will try my best to make it. No gaurentees I will, but I can try. If I do, I'll post a video on my channel (MinecraftPotatoes42) showing how to make it and giving you credit, and then send you the link.

Thanks, and I hope you come up with some great ideas!