It would probably be easiest to buy the parts and just make one I think. As far as I know, they were only available with the car, but if you live near a good hobby shop or even a Radio Shack, they may be able to help point you in the right direction.
Stewie: Alright you insufferable car, you've foiled my plans for world domination for the last time! Now you will be destroyed with my latest creation.
Herbie: (Runs over Stewie and pins him to the ground)
*DISCLAIMER* No Stewies or Herbies were harmed during the making of this comic panel. However, a certain domination-minded infant WAS humbled rather abruptly!
find the charger so do you know where I can get a new
one?
Herbie: (Runs over Stewie and pins him to the ground)
Stewie: BLAST!
*DISCLAIMER* No Stewies or Herbies were harmed during the making of this comic panel. However, a certain domination-minded infant WAS humbled rather abruptly!