One problem of the prop maker and cosplayer is how to make a dummy with the same body dimension of the maker. Well, now is possible with some simple material and simple passage.
1- Dummy need an internal skeleton, this can be realized with plastic tubes of few inch or with some wooden strips. I used 6 wooden strips long 1 meter. When you saw the various strips remeber that: legs should be longer because they should be established on a support base, pelvis and shoulder should be a little short respect to real dimensions.
2- Get cellophan and scotch tape. Wrap your body with the cellophan, cellophan should be snug to body. Now wrap your body with the scotch on the cellophan. Do not leave empty spots.
3- With scissors cut the casing of cellophan and scotch along the central part of the legs, abs and arms. Attention: scissors must has rounded tips!
4- Place the casing on the skeleton and fill it with synthetic wool, closing the cuts with scotch.
5- The dummy is complete, now you can add a styrofoam head.