A Chair Companion is a small table which is useful to keep items handy while seated, such as a remote control or a drink. This Chair companion is low cost, light weight and easy to make.

The simple version of the chair companion is made here using 4 balloons. A larger one can also be made using 12 balloons, with each tetrahedral group of balloons supporting a corner of the table top.

Supplies

Cardboard

4 balloons

Invisible tape

PVA glue

Step 1: Table Top Part 1

To make a table top for the Chair Companion:

Measure a triangle on a piece of cardboard by making a couple of 30 centimeter arcs with a ruler and pen
Draw the triangle
Cut using a craft knife
Make two triangles for added strength

Step 2: Table Top Part 2

Glue the two triangles together, one on top of the other using PVA glue
Have the corrugations cross each other for added strength

Step 3: Making the Base

The base is made from four partially inflated balloons:

Blow up a balloon to about 15 centimeters in diameter
Blow up another 3 balloons to the same size as the first one
Attach the balloons together to form a small tetrahedral using invisible tape

Step 4: Attach the Table Top to the Base

The cardboard table top is attached to the base using invisible tape:

Lay 3 strips of invisible tape across the cardboard, so about 20 centimeters of tape extends free
Position the balloon base on top so the apex of the tetrahedral is touching the cardboard
Attached the free pieces of invisible tape to the balloons - use a little tension
Wrap a piece of invisible tape around the balloon base to keep everything together

Step 5: Ready for Action

The Chair Companion can now be used to keep useful items close at hand while sitting in a chair.