Train Bristlebot

This is my first instructable, so no mean comments. :)  I wanted a bristle bot so I made one that looks like a train.

Supplies :
toothbrush heads: one small,one big
old electric toothbrush ... the cheap kind get the moter from it
bamboo skewer
strong glue - i used caulk
battery 
if needed get foam 

glue the skewer onto the top of the small brush head and put the  big brush head on the back

glue  the battery on to the skewer if needed put it on foam then glue it

glue the motor in front of the battery 

horray!!!!! lets do an opera haw haw! to turn it on put the little wires on the leads of the battery