I love Nico Kazz's rocket plume https://www.thingiverse.com/thing:2823726 but cannot get the rocket to print on my machine so started looking for a rocket that would print.
I replicated and added to the plume then I combined it with Shawn Rains fantastic rocket to get this result. Then I added the middle flame which you may find needs to be glued into place
I used 1cm brim as there is not much to hold the rocket to the base plate and added support just for the the middle of the rocket. No support or brim is needed for the plume.The tolerance is tight and you may need to do a bit of sanding to get it to snap together.