For years, I have been using a variety of aides for painting and holding model rockets during assembly. Finally, I realized I could do a little laser cut jig that would make things much easier.
The Big Handy Stand™ can help you during the assembly and painting of model rockets. This set includes for use with one 29mm motor mount, and up to three 18mm and 13mm motor mounts. It can easily be adapted for 24mm motor mounts (adapter not included).