This is my instrucatable on a very easy to make game. It is for two players and is very good as a travel game. The game flashes a colour and the players have to find an object of that colour. The first person to do so wins.
How you play:
The red / red and green leds with flash. Then one of the leds will turn on. When this happens the players have to find an object of that colour. Once they have they must press and hold their switch. If they are first then all the colours will flash and then a colour will light up (red for player 1, sw1 or yellow for player 2, sw2). Then they say what the object is and any player presses their switch and a new colour will be picked.