Corrugated plastic can be sharp if cut to a point, please be careful. Have the child draw any accessories on the construction paper and cut out. Use the double stick tape to adhere the accessories to the plastic. Use the paint markers to draw anything on the plastic that they wish. Tips You can also use regular cardboard and paint it in place of the corrugated plastic.
Corrugated plastic is made by several manufacturers.
It is known as Stratocore or Coreplast, along with other names. I found that if I purchased it from a signage store it was cheaper as long as I was going to make several projects out of it. Otherwise, open it.