To build a gyroscope, affix the handles of a bicycle to the axle of its wheel, knot a rope to a side and use it to hang the wheel mid-air. Alternatively, fold a piece of paper into strips with a thickness of 1/2 to 1 inch, and make it into a cylinder.
When using the wheel of a bicycle to build a gyroscope, attach the cycle's handles to both sides of the wheel's axle. Ensure that the center portion of the handles has a hollow that can be slipped over the axle.
Then attach a clothesline rope to the wheel's side, and position it between the handles and wheel. Use a triple or double knot when tying the rope to ensure a secure attachment. Snip excess rope so that it does not get entangled in the wheel's spokes. Use the rope to hang the wheel mid-air from a hook, preferably one attached to a beam, in a covered porch or patio.
When using a paper to make a gyroscope, place a plain piece of paper that is 11 inches long and 8 1/2 inches wide with its longer side horizontal on a flat working area. Fold the paper into strips of the required thickness from one side. When folding, fold over the previous folds, and leave approximately 1 1/2 inches of the paper unfolded towards the other side.
Now, fold the paper into a cylinder shape, while keeping the folds within the cylinder. To do this, slip the lip on one end of the cylinder into the lip at the second end. Hold the gyroscope such that its stiff portion touches the index finger and thumb, and throw it as you would throw a football.