Learn to make the origami cup! If you make this great origami design out of waterproof paper, then it can actually hold your drink... How convenient!
There are many other great origami designs on this site - practical ones like the box or envelope, or fun ones like a horse that does flips or a frog that jumps!
There are dozens of easy to understand diagrams with free pdf downloads of the instructions, and some have videos too! Click on the link below to see the entire list of diagrams on the site:
Please, have a browse around the site - you might find more than you were expecting!