Summary

I wanted jetpacks for minifigures, and then came up with a way to make it even more awesome. The big figure is the same model scaled up to 19 mm for the neck hole, or whatever yours might be.
Prints great with not many extra settings and works well when printing more than one at a time to let it cool, although that might not be a problem if you have a layer fan.

also on thingiverse→https://www.thingiverse.com/thing:6622416