Pit Droid
At the pause menu, press the following combination of buttons: Start, Start, Up, Up, Up, Down, Down, Down.
0% success rate. 

Black Lightsabre With Blue Outline
At the pause menu, press the following combination of buttons: Left, Left, Right, Start.

Lego Coins
At the pause menu, press the following combination of buttons: Left, Left, Left, R, L, Right, Right, Right.

Go to: Lego Star Wars Info Page | nGaming Home Page.