Endstop Bumper

I made this in order to be able to orient my mechanical endstop vertically and thus gain a bit more space on my Prusa's x-axis.

I am using http://www.thingiverse.com/thing:10885 for my X-carriage and this lines up with the zip tie holes and secures neatly there. I have a makergear-style plastruder, not sure if this would fit with a different extruder or not.