Yes.
I have build the foam chest with out problem, It turned out like it has to. Not flat, with details..
The cuts in the pieces has to be made else the pieces will not correctly fit together. WARNING: some of the pieces has to be 'custom' modified. Use the pepakura 3d-model always as a reference point.
I've found HD gloves (original from warmachine but is the same as those from Iron Man) Zabana released the files. The 3d model is MUCH better and nicer. My advice would be don't start with my hand palm, fingers and wait till I get a foam unfold of it.
I use sandpaper or a foot file to sand the glue away that is seen between the joints. Oh ye a use also tape to tape both pieces together (not just a few pieces but all over the length) and then I bend the pieces so there exist a gap and I fill it up with glue and press them back together.
This maybe not explained correctly but use a little fantasy.