Exhibition Idea 1.

 My first idea for my exhibition piece is based around the seesaw, I think that a seesaw is a good way to display the function of if/else.
As showed in the birds eye view on the left the ends of the seesaw with sit over pads made of conductive material. The seesaw will be set up with a circuit running to each and meaning that when that particular side makes contact with the conductive pad it will complete a circuit ( I am not sure what these will do yet though) But they will both cause different things to happen.

This is also an interactive design because the thing that will determine which end goes down and    

which circuit is going to be complete is the user.
There will be two weights and the user will get to choose which one goes on which end, also determining which circuit will be connected.