They are very simple, cheap and easy to make and provide ongoing entertainment!
You will need:
Carrier bag (thin supermarket carrier bags are best)
Ribbons and/or streamers
Cut out a kite shape from your carrier bag.
Tie two sticks together with string in a cross shape, leaving string loose to fly the kite
Attach to kite shape with sticky tape
Tie ribbon and streamers to the bottom of the kite stick to create a tail.
Have fun flying it!