So, after going through literally 9 pages of jetpack threads, this thread has really inspired me. I loved his idea to make a "booster" pack for faster forward thrust which really fits well into my heavy armor theme that I'm going for. Something to make the suit much more agile, while still being a walking tank.
http://mandalorianmercs.org/forum/index.php?topic=52757.0He used a corner toilet brush holder to make a
seriously impressive booster pack. I think the only thing I'll do a bit different is to add some sort of fuel tank going down the middle of the lower back plate, with some cool hoses going to each jet.
I work for a plumbing wholesale company and just happened to be walking in the warehouse this morning when I stumbled on these!! 1-1/2" plastic roof flashing. When I saw them, I immediately thought of Sirus' booster pack. I seriously think these will work great, so I grabbed a few. And the best part is they're only like $2/ea.
Stay tuned!