The Mouse Droid Part Pack is a set of attachments for the FL-3VL Companion and can be purchased for a total of 100 SC.
The Bobblehead reacts by firing PEZ on the player or speaking quotes from Republic Defender. Such mouse droids that can use it are F1-V3L and 1M-AU5. The Bobblehead is a Phase I clone trooper's helmet.
Bobblehead
Rocket Boosters