Team Fortress 2 Rocket Launcher

Over the last week I have been puting a lot of time into the rocket launcher for my Team Fortress 2 soldier costume. A good reference of the rocket launcher in-game can be found at TF2wiki.net. Here is my progress:

This is the removeable nose-cap. It is designed to pop out so I can put things in the body of the rocket launcher while I walk around PAX. The cap is made out of a piece of styrofoam that was carved to shape then finished with Bondo all-purpose putty.

This is the flanged tail end of the launcher, also carved out of styrofoam, epoxied to the main body piece of PVC pipe, then slathered in Bondo. Here you can see it before and after being covered in Bondo and adding the two rings to the back end.

Here is the sanded flanged end with the two rings and the cone-shaped part on the back end of the launcher. The cone is a funnel that I picked up at an auto parts store. The ring at the end of the cone is cardboard that has been expoxied to the cone then covered in Bondo.