Ok i read Nakka's site and Yawn's site and made the following:
6"long 3/4" diameter PVC pipe water putty nozzle 1" thick
4" 65/35 Rcandy little bit of paper wadding epoxy on top
1/4" core halfway through
1/4" nozzle opening at throat
4' 3/8" dowel for stick {i'm not ready for fins yet, especially for testing purposes}
unsure what will happen, but test burn on comp was good.
let you know at 4 pm pacific time how it worked