I was working on getting the chess pieces to react to each other and came upon this tutorial. it makes a very simple chain that is just doughnuts but the possible inplications of this are pretty cool. if you wanted to have your chess pieces act like the ones from Harry Potter something like this would be extremely helpful. Having
the process is extremely simple but with many links in a chain or multiple chains you could create a character or very quickly clap one on irons to create a realistic prisoner.