Check out this Fan Film of how to fit your Stormtrooper costume.
Related Videos:
Stormtrooper Tribute
My Stormtrooper Humps
Star Wars Shop London - Jedi-Robe.com - August 2014
Tokyo Dance Trooper & NIKK
Dubsquad III w/ Da Force
Sad life of a Stormtrooper part 1
Things You Can't Do... as a Stormtrooper | Ep 1
Star Wars Shop London - Jedi-Robe.com - June 2014