The heads I purchased on Ebay but the rest I made myself. I purchased a cheap male mannequin on ebay. I then increased the height of it by cutting the legs in half and screwing 4" diameter plastic pipe between the cut leg pieces. I then cut up two old garbage pales and used the plastic to cover the plastic pipe between the legs. With the rest of the plastic I made the general shape of the alien putting it in place with screws. I then made the fine details using magic sculpt the epoxy resin that molds like clay and turns hard like rock. I used about 20 pounds of magic sculpt making the big chap alien from the first movie. I have it for sale now on ebay. I built that one in two months working about 40 hours a week.