>>9352788You cannot remove and swap them at the shoulder joint--I've tried, and you'd have to forcibily, very forcibly, take apart the torso with the engineering they've got in there. I swapped them at the bicep joint, which was easy enough using a hair dryer on high heat. FYI I bought an extra He-man at one point for the purpose of experimentally modifying it, and come to find out, they've done some, well, interesting stuff in the torso engineering-wise. You'd have to permanently alter it to take it apart.
What you're seeing in my photo is the product of three Fakers and one regular He-man, though. I removed the hair from the "ordinary" Faker head and placed it on one of the "terminator" heads from the Faker packs to have a slight different look; I had to heat and shave down the top, back and sides of the terminator head in order for the hair to sit low enough on the sculpt. But yeah, two of those Faker's are a product of a simple arm swap carried out at the bicep, as described above.