I made the mannequin by putting on a black plastic bin bag then getting my sister to wrap my in gummed parcel tape. When I was all wrapped up my sister cut up the back and removed the form. I then taped up the cut and the head hole and stuffed it with plastic bags.
Next I took an old Christmas tree and cut off all the branches, I wrapped the tree in some tough white cotton and secured it around the trunk with some co-ordinating herringbone tape. I then secured the trunk in a Christmas tree stand. I placed my mannequin form on top and covered the bottom of the form with more gummed tape to keep it attached to the tree trunk.
Here is the finished thing: