- 2 empty soup or similar cans, labels removed
- Tin opener with sharp point or a hammer and nail
- String or thin wire at least 80 cm long
- Using the tin opener or hammer and nail, make a hole in the centre of the base of each tin. The hole must be just big enough for the string to go through.
- Thread the string through the hole of one tin. If it’s difficult, you could use the tip of a paperclip or a piece of wire to push it through.
- Knot the string on the inside of the tin. Pull the string taut so that the knot is against the base of the tin.
- Thread the other end of the string through the hole in the other tin, knot it and pull it taut.
- One child can now hold the open side of one can against his ear and another child can talk to him through the open side of the other can. The string should be as taut as possible. They’ll hear each other speak, even if the string is very long.
HINT Instead of tins you could use plastic or paper cups. Cups made of polystyrene don’t work as well.