How to Make a Tuba From Cardboard

The tuba makes the deepest sound in the brass instrument family. Sound is made by blowing into the mouthpiece, and pressing and releasing the various valves. A cardboard tuba makes a good prop for stage plays and works well as a wall hanging. Cardboard is an easy medium to work with and is versatile enough for creating a variety of projects. Cutting cardboard doesn't create a mess, making it ideal for indoor crafts.

Things You'll Need

  • 2 large cardboard boxes
  • Box cutter
  • Pencil
  • 2 cardboard tubes -- about 3 feet long
  • Photo of a tuba
  • Gold spray paint
  • Newspaper
  • Black tempera paint
  • Paintbrush
  • Craft glue or packing tape

Instructions

    • 1

      Remove the tape or staples from the cardboard boxes. Open the boxes and lay them flat.

    • 2

      Draw an outline of a tuba on one of the flat cardboard boxes, using a pencil. Refer to a photo, to create an authentic-looking drawing. Then draw a second tuba outline the same size on the other box, to create a backing piece.

    • 3

      Cut out both tubas, using a box cutter. Push firmly to ensure that you cut through the entire piece of cardboard. Gently push the tubas out of the cardboard.

    • 4

      Paint one of the cut-out tubas. Use gold spray paint to cover the entire surface. Allow it to dry completely. Then apply black tempera paint with a paintbrush, to add the details of the tuba. Let dry.

    • 5

      Assemble the prop tuba. Tape or glue cardboard tubes to the back of the painted tuba. Then glue or tape the unpainted tuba to the tubes to create a backing -- with its outline aligned with the painted tuba's outline. This allows the tuba prop to stand up or lean against the wall or a piece of furniture.

Tips & Warnings

  • Place a scrap piece of cardboard under the tuba when cutting, to prevent damage to your work surface.
  • When using spray paint, work in a well-ventilated area to minimize your exposure to harsh fumes and chemicals. Avoid using spray paint indoors, because it can stain furniture, clothing and floors.
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  • Photo Credit Jupiterimages/Photos.com/Getty Images

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