So following on from my previous idea.
When I attended a online safety course, I was given an activity to identify various games, social media platforms from their logos e.g the usual suspects, plus games and stuff kids use.

I am trying to put something similar together that has logos of things like Linux distros (mint, debian), fediverse instance logos (mastodon, peertube, pleroma, pixelfed, software giimp,

It could be a good way to start a discussion and also if anyone here is teaching it is a good way to figure out what people know already.