I bring in different rocks and fossils and show some fools gold and show to tell it is not real gold. I also a bring in a fossil I ask everyone to guess what it is and it turns out to be fossilised dinosaur poo! I also borrow a microscope to show what the minerals that make up Basalt look like really close up. I also unroll an entire 200 sheet toilet roll around the room as each sheet = 20 million years and only the last 1mm of the last sheet is how long humans have been Around. It’s a good fun show!