How many oslo papers do you need to make a paper gun that shoots?

The number of Oslo papers needed to make a paper gun that shoots can vary based on the design and size of the gun. Typically, a simple paper gun can be made with just one or two sheets, depending on the complexity and the mechanism you choose. For more elaborate designs, you might need several sheets to ensure sturdiness and functionality. Ultimately, experimentation will help you determine the optimal amount for your specific design.