Things You'll Need
Papier mache paste (flour, salt and water)
Newspaper, cut into strips
White craft paint
Black felt-tipped permanent marker
Be the King of the Boos this Halloween and dress up like Mario's King Boo character. King Boo is the leader of the Boos in the Mario game Luigi's Mansion. Pair this costume with other friends dressed up as Mario characters and you can have a one-of-a-kind group costume. Whether you coordinate your costume with those of your friends or wear this King Boo costume on your own, you are guaranteed to make a statement.
Blow up the Beach Ball
Inflate a large beach ball. This will be used as the foundation for the papier mache head of your King Boo costume.
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Create the Papier Mache Paste
Combine 1/2 cup flour and a pinch of salt with water in a large mixing bowl to make a gooey, but not runny, paste mixture.
Apply the Papier Mache to the Ball
Use strips of newspaper and papier mache paste to apply this combination in layers over the large beach ball. Dip your newspaper strips into the paste and then press them to the ball, smoothing them carefully with your fingertips.
Apply at least seven to nine layers of newspaper strips. Allow ample drying time before removing the beach ball. Then, remove the beach ball by deflating it using a sharp object such as a knife to poke a hole and allowing the air to escape. Cut a small hole into the dried newspaper and pull the deflated ball out through the hole.
Paint the Papier Mache Ball
Paint the entire papier mache ball with white craft paint and a large paintbrush. Several coats of paint may be needed to get a consistent color that adequately covers the newspaper.
Cut Holes in the Ball
Use a craft knife to cut holes in the papier mache ball. Cut a hole on each side of the ball for arms, an additional hole in the bottom for your body and head to fit through and one in the front for your face (so that you can see and breathe.)
You will be wearing the costume over your entire head, shoulders and upper torso, so the bottom hole needs to be large enough for you to put the costume on and take it off easily.
Give the Ball King Boo's Face
Draw King Boo's face on with a black felt-tipped permanent marker. Alternatively, you can use black craft paint and paint the face on instead.
Cut and Glue on a Tongue
Cut out a tongue from pink felt and attach it to the costume using tacky glue. Use clamps to keep the tongue in place while it dries.
Crown the King
Glue a pre-made gold crown from a craft store onto the top of the King Boo costume.
Wear Your King Boo costume
Put the King Boo costume on over a black shirt, black pants and shoes to complete your King Boo costume look.