I have been asked about making Papier Mache or Paper mache.
There are many recipes out there, but this one is the one I use and is a combination of many, resulting from much trial and error! This results in a strong, thick and sturdy product which will last for many years. It's not a quick method, but the quality is worth the process.
You will need:
wall paper paste
Mold base or balloons etc
Leave to dry in a warm place. (you could try putting in the oven on a low heat, but be warned I tried and failed!)