Flight Module for Dummy Balloon

Here is an image from CAD of the flight module coming together- a work in progress.  I plan on toying with the idea of making the casing in the shape of a raindrop.  If I add some ballast (can't afford to add too much), this should make the module always point in the direction the wind is coming from and minimize the extent to which the module gets knocked around.  Just a Styrofoam box for now though- it will be much easier to manufacture for testing purposes.  The rain drop design would probably require some time with a lathe to really get a good shape going.  Stay tuned.