My favorite goop.... paper mache.

My paper mache recipe is pretty much recycled newspaper, water and white school glue. The newspaper is cut into small bits and placed in a plastic bowl. I add water until it covers the newspaper cuttings and allow it to soak for about an hour. I then blend the mixture with an electric hand held blender that I got at a garage sale for five bucks. I then pour the blended mixture onto cheese cloth or reusable dollar store kitchen cloths. Twisting the mixture in the cloth in a ball, similar to how cheese is made, I remove a majority of the water. Placing the pulped paper back into the bowl I slowly add white glue and small amounts of water back into mixture and knead the mixture until it resembles a clay like consistency. This mixture should be used within a day or two or the glue will begin to sour. Keep it covered so you don't have too much water evaporation but you can always re-wet hardened paper mache. It's such a fun and forgiving material to work with. You can make it as thick or thin as you like depending on the application.