This traditional origami cup shares the same path of making a traditional origami cowboy hat up to the step #9. You can actually use this origami cup for drinking water.

The traditional origami cup is 2D version of origami cup. So you can not put water in it. But this model is a good example to learn how to make a pocket.

This 3D origami cup can be used instead of real cup. If you make this cup with a 20cm x 20cm paper, then the cup could hold the same amount of water as real coffee cup. Hot water can be contained since the cup has four handles. Make sure to use a waterproof paper when you make this cup.