Here's a good jet pack design that I came up with one day. It is small, easy to build, and powerful, having three boosters. This jet pack is fit for any affiliation, from Republic to Alliance, or even just individuals. See pic. 5 for instructions. Please review, and thanks for looking!
About this creation
Side view. It isn't exactly thin, but doesn't look out out of proportion. I believe this to be from the width.
Front angle. The jet pack looks nice from the front, too.