Toy - Somersault.

To make a somersault we will need foil from several chocolate bars. You can use cooking foil, but then you won’t be able to eat the chocolate. We will also need an old computer mouse. You can do without it. The fact is that the only thing we need it for is a ball. If you already have a ball, then you don't need a mouse.

The entire manufacturing technology, I think, is clear from the photographs.

Remove the rubber casing.

Instead of the “mouse” one, you can take any other ball.

Wrap the ball in foil.

Shape it into a cylinder.

To get the cylinder right, you need to shake it up and down. The ball moving inside the cylinder will straighten it to the desired shape. We wrapped it with thread just in case so that the ball would not tear the ends off the cylinder during shaking.

Slightly align the shapes. Threads can be removed

An inclined plane can be made from cardboard. For small children, you need to either take a wide inclined plane, or make side walls near the inclined plane. Otherwise, the toy will always fall over the border.

But for office entertainment, a regular wooden ruler is suitable. On a plastic ruler, the toy will slip and somersaults will not work.

The task is simple - by adjusting the tilt of the ruler to reach the finish line and prevent the toy from falling overboard.

The second option was tumbled:

Somersault 2

Kids will love this funny toy. She slowly descends the inclined plane, doing somersaults (before each somersault there is a short stop).

Paper tumbler. It is glued onto a wooden block. (You can use foam plastic as a blank.)

Take a block 25 by 25 by 75 millimeters, round the edges as shown in the figure, and sand the blank. Having placed a layer of paper on the blank, glue a second one on top, then another and another so that a wide paper “rim” about 2 millimeters thick is formed. Take out the blank, glue two blanks (made of cardboard) to the rim. First, place a metal ball with a diameter of about 20 millimeters inside. Secure the sides properly so that they do not fall off (you can use strips of paper). All that remains is to place the tumbler on an inclined plane.

Third option also made of paper, but without any blanks. The size given is approximate. Everything will depend on what diameter of the ball you can get.