How to make Lego Batman foam helmet

I was invited to the Lego Batman movie premiere so I decided to make a cosplay costume for the event. Designs are based off screenshots of the movie trailer and video games
link to the templates
https://www.facebook.com/xiengprod/photos/a.618383431655355.1073741833.295783260582042/745669852260045/?type=3&theater

for your cosplay supplies check out this site
http://tntcosplaysupply.com/index.html

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