What you needEmpty toilet roll
Cut out a square of greaseproof paper.
Fit this over one end of the toilet roll and secure with the rubber band.
Using a pencil poke a hole into the middle of the greaseproof paper.
Hold the open end of the roll against your lips and sing or yell.
We decorated our kazoo above with wrapping paper, but you could have the kids decorate it with paper, fabric or just paints.