I bought a different spray can handle and refitted it with the hardware. The epoxy is drying on it now:

I also need to make a cheap rocket because most of the Estes rockets are too big to properly fit on the guide rod.

I have a design going with an old plastic cigar tube that should be fine. It has an "A" sized motor, the smallest you can get (for safety). If all goes well, I should be doing a test launch next weekend!!!