Take three numbers of mirrored perspex and roll them with the help of the tape and form it in a shape of triangle. Check and verify the firmness of the perspex and also tape it from the outside of the triangle.

Draw a small triangle which is located at the edge to the overhead transparent paper. In excess of that, set 1 cm around the triangle to allow the paper folding.

Place the transparent paper on the edge and also make some small openings at the edges. This makes the folding at corners easy. Attach the transparent paper into a separate place.

Draw and create another triangle and make the triangle 2 cm bigger than the previous one.

Choose the color of the plastic as per your preference, and put that plastic inside the kaleidoscope. Paste small paper cuttings on the transparent paper.

Put the colored plastics at the kaleidoscope end which has the transparent paper in it and later add another transparent paper over it like a triangle. The second paper should be placed upside down, so that some space will be created for the colored plastic to move inside.

You can cover the kaleidoscope and decorate it with different colors and so on.