The best way to make dummies for out-side is to: First make a large cross out of wood. Then get an old shirt and pair of pants to put on it. Take the cross and put it thorugh the top of the pants down through one of the legs. Now put the shirt on the top part of the cross putting the cross piece through the sleeves. Next pin or sew the bottom of the shirt to the top of the pants. Last fill the clothes with newspaper/plastic bags or leaves. Stick  a regular halloween mask on the top. SEE pictures below.