Best way to shape styrofoam around a sphere?
I'm getting ready for my next project, making a Deadmau5 head that replicates his pinhead helmet from last halloween. Since this helmet will require "messing up" and texturing the head rather than using fabric, I was assuming I'd use styrofoam to create that effect. However, I am uncertain as to whether or not I should be buying a hollow styrofoam sphere or flexible styrofoam, or something else. Any help/guidance would really be appreciated. I will be putting the material on a 13" hamster ball. Thanks in advance!!