I received Zero's Halloween Hackfest poster yesterday. It's very nice. I made sure to put it up in the workshop with Zero. 

After that I got to work fixing that hole around his neck (or at least making it less noticeable) and covering up the LEDs on the electronics. I considered painting the inside of Zero black but our weather forecast doesn't look favorable for that. Electrical tape was enough to block the LEDs. 

While Zero was off the chassis I could take a picture showing the size difference between the drive system and his body. I considered swapping the motor leads and making Zero a front wheel drive but I'm pretty sure the terrain for the upcoming Halloween event is going to be mostly grass so the larger front drive wheels are probably my best bet. One day I want to upgrade this chassis with some much larger wheels I have that are pneumatic. I just have to worry about clearance within K-9's body.