In his original work, Mr. Cole commented that technically the problem of ?nailing Jell-O to a wall? is basically intractable, since one cannot hold Jell-O up to a vertical surface in order to nail it without having it fall apart. So we mixed up a batch of our ballistic gel. It?s a super concentrated form of gelatin with the consistency of rubber that?s used to test the penetrating power of firearms. We made our homemade version using 4 oz. unflavored Knox gelatin powder with 2 cups water…
So says the experimentor who set out to succeed where Mr. Cole admits to have failed.
(Thanks to investigator Longtermguy91 for bringing this to our attention.)