Zombie control Collar V2.0 (OLD)

V6.0 is here! Check it out in my other prints. I will leave V2.0 published since almost none f the parts are compatible with the new, improved version, also this one is currently a bit bigger.
NOTE THIS IS AN OLD VERSION!
I made a version of this collar a few years ago before I got my 3D printer. I wanted to see what a 3D version would look like when printed.
Updated 10/17/15
If you make one of these feel free to add your input on printability and design.

NOTE THIS IS AN OLD VERSION!