Well, the demo has the combiner in it, so post your coolest character creations here!
I like one that I made with Boba's build, but it has Maul's head underneath and a crossbow. Looks cool in a odd sort of way

The most effective character is one with a lot of range. That said, A 4LOM head or IG88 head, on top of a body equipped with a red lightsaber gives that character a lot of abilities.

1- Block and deflect blaster bolts
2- Unblockable saber attacks
3- Saber area attack (jump, jump, slash)
4- Force abilities- stun/choke enemies
5- Build block items with the force
6- Move/break dark force only blocks
7- Thermal Detonators (Rockets with cheat)
8- Access to Bounty Hunter doors
9- Access to R2D2 doors
10- Access to C3P0 doors

Just asking, but how do I get the head or body of a LSW 1 character, for example Kit Fisto, for my own character??

You can't. It would have been easy for them to code it in, but they wanted to get the game done and out the door without having to rush to finish up any details for the game. So they skipped out on that and a lot of other things they probably shouldn't have.

quote Likonan

Just asking, but how do I get the head or body of a LSW 1 character, for example Kit Fisto, for my own character??

You can unlock LSW 1 characters for freeplay. but not charcter customizer.

i dont know you but i can use darth maul head in the creator