What's more interesting is that the seats of visitors and consultants must be placed at a proper angle, and there should be something warm between the two seats, so that people will look happier. As for the most interesting gadget, I think it's a sand table.
In fact, when I was at school, the teacher asked us to do activities like sand table. At first, we were puzzled because we didn't know anything and the teacher didn't teach us. Later, in class, our teacher took us to do it again, and let each of us write down what we want on it once, and then put it into a scene at the end.
During this period, our teacher kept writing something on the paper with a pen, but in the end, he didn't tell us about it, either because of lack of time or because the teacher wanted to write it himself, so there was no need to tell us.
However, I think the process of making sand table is quite interesting. We can use our imagination at will, put all kinds of scenes in that plate of sand, or pile the sand into various shapes. Putting a sand table requires a bunch of strange toys, which seems random, but it can also explain a big problem. But when I put this thing, I didn't learn sand table, so I didn't know anything. I just put it on for fun. On the whole, it's quite interesting.