I wanted to take a try at papercrete. Cement/Concrete with recycled paper pulp. There are a lot of examples of using it to fabricate bricks for building and for art. I guess I could have built a mini papercrete mixer but how about just jumping in and using cement mix as the glue for papier mache? I needed some decorations for the garden but I was not geared up to do concrete casting nor did I want to get into forming armatures or wireforms from rebar and wire mesh. Strolling down the home center aisle, there are many cement products to use. They had this Surface Bonding Cement/Quikwall product that is composed of cement mix and reinforcement fibers. It is supposed to cure to be water resistant to some degree too so it would be good for the final product to be outdoors. This would be perfect to experiment with. It was also about $20 bucks a bag so relatively inexpensive to see what it was capable of. It is a proprietary mix that would probably be difficult or more costly to make on your own.
CAUTION: Read the instructions that come with the cement/concrete mix. Follow directions for use and safety precautions.