Make your own ping pong ball cannon

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Go back in time with past Blue Peter presenter John Noakes, as he shows you how to make your very own ping pong cannon ball.

You will need
  • Some ping pong balls
  • Half a kitchen roll tube
  • 3 spools
  • Tape
  • Some colourful markers
  • Cardboard
  • A plastic freezer bag (instead of the paper bag in the video)

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