Crafting food with plasticine is a simple and fun activity for children. Here are some simple ways to make food by hand using plasticine:

1. Making fruits: Use plasticine of different colors to make various fruits, such as apples, bananas, oranges, etc. Roll the plasticine into a ball and use a small tool to press out texture and details. Finally, a toothpick can be inserted into the plasticine ball to serve as a handle for the fruit.

2. Make vegetables: Use green plasticine to make vegetables, such as broccoli, carrots, etc. Knead the plasticine into small pieces and use a small tool to press out the texture and details. Finally, a toothpick can be inserted into the piece of plasticine to serve as a handle for the vegetable.

3. Make bread: Use yellow plasticine to make bread. You can add a small amount of red or brown plasticine to change the color of the bread. Roll the plasticine into a long strip and use a small tool to press out the texture and details. Finally, a toothpick can be inserted into a strip of plasticine to serve as a handle for the loaf.

4. Make a cake: Use white plasticine to make a cake. You can add a small amount of blue or green plasticine to change the color of the cake. Roll the plasticine into a round or square shape and use a small tool to stamp out the texture and details. Finally, a toothpick can be inserted into the plasticine to serve as a handle for the cake.

Relevant knowledge about plasticine is as follows:

1. Ingredients: Plasticine is mainly composed of adhesives, fillers and pigments. The binder is usually a substance called polymer clay, which is sticky and malleable; fillers are used to increase the volume and reduce cost of the plasticine; and pigments are used to add color to the plasticine.

2. Characteristics: Plasticine has good plasticity and ductility and can be deformed at will. It retains its shape at room temperature but may soften when exposed to heat and humidity. In addition, plasticine generally has good insulation and chemical resistance.

3. Uses: Plasticine is widely used in children's toys and handicrafts. Children can use plasticine to create a variety of shapes and objects, such as animals, people, and buildings. At the same time, plasticine can also be used to decorate and create a variety of unique works of art.

4. Brands and types: There are many different brands and types of plasticine on the market, such as crystal clay, ultra-light clay and paper clay. These different brands and varieties may have different properties and uses.

5. Storage and use: Plasticine usually needs to be stored in sealed bags or containers to prevent drying and hardening. When in use, the hardness of the plasticine can be adjusted by adding water or oil to make it more suitable for specific uses.