J started building one structure by piercing the styrofoam with the colored craft sticks and leaving the sticks exposed.
Ta-da! The first sculpture!
I then handed J a much thicker piece of styrofoam to build with, which lead to him to try out a different technique for building. Instead of leaving the craft sticks exposed, he pushed them all the way down until he couldn't see them.
Since the styrofoam was really thick, he needed to apply a lot more pressure to push the craft sticks through.
But the end result was fabulous!