For the first part, make chroma key blood: Ingredients: glue, flour, mix with water like papier mache, three drops of green and two drops of yellow food color. This combination gives more of a fluorescent chroma key look. Then to make the desert eagle gun: Materials needed: cardboard, cardboard tube, plastic tube, air dry clay Find a picture of the desert eagle on line. Make a stencil in cardboard. Make six of them. Measure tubes and cut. Now, we have the basic shape of the gun. Hot glue everything together. Glue a piece of cardboard for the handle. Add air dry clay. Sand the gun all over. Paint it black, silver and finally gold. Upload videos.