I don't remember what project I was trying to configure,,, maybe squid or privoxy?? I don't remember. But I did steal the idea!
What would be really cool is to create two zones for whitelisting/blacklisting. One for parents, and one for children.
Essentially you would have two adlists.list, and two copies of manually added black/white-lists.
This would allow you to use (example) the Securemecca list on one zone, but not the other.
You could select devices via the webui that you want to allow to visit certain webpages,, but prevent those same webpages from being accessed by other devices.
I'm not a parent, but I feel like this would make it very nice to filter what a child can do on the network, without having to run multiple piholes for the same effect.
Side-thought: the ability to set times-of-day that certain webpages are accessible. For instance, block youtube and social media on the "kids zone" during homework time, and when they should be in bed sleeping.