Message deploying missile.

I made this rocket that shoots out a meesage from the back when it hits its target. It has a plunger that pushes the message out when it hits its target. I know the tip is not aerodynamic but I did it this way so the plunger could have a lot of surface area. It is meant to be shot out of a PVC paintball gun with a inner diameter of about 25 mm. There is also a plunger on the inside to insure that the message is pushed out. To assemble this glue the smaller plunger to the rod and feed it in from