You can use some common materials and tools to make military chess pieces at home. Here's a simple method:

Materials:

-A small square or cylinder made of plastic or wood as the basic shape of a chess piece.

-Paint or marker, used to color or mark chess pieces.

-Brush for coloring and painting.

-Protect the chess pieces with varnish or glue.

Steps:

1. Prepare small squares or cylinders, which can be found in some abandoned or existing toys or made of wood blocks.

2. According to your preferences and the specifications of the pieces, cut or trim these pieces into appropriate sizes.

3. Color each work with paint or marker. According to different armies, different colors can be used to distinguish chess pieces, such as red and black, green and yellow.

4. Use a brush and varnish or glue to coat each chess piece with a protective layer to increase durability and aesthetics.

Let the chess pieces dry thoroughly, and then you can start playing military chess at home.

Please note that this is just a simple method of making. If you want to make more exquisite and professional chess pieces, you may need to use more professional tools and materials for more complicated processing and decoration.