They also designed the machines that make them. The InvestiGator is showing you one easy bag to make. Wrap your paper around a small box as if it were a birthday present. Fold and seal just one end, and take out the box. Each sheet should be of the same size.
Every idea is worth testing.
Lay the paper flat. That will help you decide what shape your bag should have. Start with something easy, such as a handful of dry noodles. Use the bags you took apart to get some ideas. Its design uses folds and glue that help make the bag strong and able to stand upright for easy stuffing.