There are a few different ways that you can make a grounding mat. The most common way is to use conductive fabric, which can be found at most craft stores. You will need to cut the fabric into strips and then sew the strips together. Once you have sewn the strips together, you will need to attach alligator clips to the end of the strip. The alligator clips will need to be attached to a grounding rod, which can be found at most hardware stores. Once you have attached the alligator clips to the grounding rod, you will need to place the mat on the floor. You can then stand on the mat and it will help to ground you.