I start with a pvc frame to place over a wooden stake in the ground for support. I also glue the pieces of pipe so it dosen't move or fall apart....learned the hard way on that one. Then I use pool noodles for making the arms. The rest of the body I get a bunch of plastic gracery bags inside one bag and blow a little air in them and tie the ends real tight then tie to the pipe to fill out the body where needed.