How to Make a paper gun that shoots pens
First you take a pen and a paper, you roll the paper keeping the pen inside the paper. Then remove the pen from it and plaster the paper for effective use. Then take another paper and roll the paper in the same manner but thin that of first one which suits as a handle. Then attach this handle to the first rolled paper. Then insert a pen into the first roll and then catch the handle and blow air into it then the pen shoots out of the gun.