However, yesterday we went for Nate's enjoyment. The first thing we came across was Bare Conductive. They use conductive paint to make circuits on cards and more recently have created a board that you can programme to do a whole host of things. One of the projects they had on show was a guitar.
The next was Primo, who make the cubetto robot. I was hoping to see this is action and was not disappointed. Nate happily played with it and wanted to solve the problems that were thrown at him. They use arrows to show which way the cube will travel in, meaning that it is suitable for young children. However, I'd suggest playing on the floor so when they get the arrows the wrong way around, the robot won't fall off the surface.
The last thing that had Nate playing until he was forced to stop was Electro Dough. Electro dough uses home made play doh to create electric circuits. We really enjoyed putting as many leds in the dough as the battery could light. It was surprising how I only had to explain to once to Nate that the LED's legs had to be in two different balls to create a circuit.