As you know, you can sit with your light sabers if you take them out and sit with them, sometimes have to click a couple times.
Same with dancing - take out sabers, dance, take out sabers again and now your dancing with sabers.
Another thing you can do and I haven't seen this posted anywhere although it's not anything big... but a little different... is to get them to come out while you are on your speeder.
It's just a glitch but you have to time taking your sabers out with loading your speeder at the same time. Timing needs to be perfect but when you do it you can drive around with sabers out - looks pretty cool.
Enjoy.