This mod moves the dryeti z-stop wrench holder up to the top, to make room for a spot to hang your calipers off the front. (Removed the large screw driver holder hole, since that isn't shipping with the machines anymore.)
The one printed below also has a slot for a tiny bubble level that I use to check the bed. (Didn't include that on the one I uploaded.)
Anywho...it's been "Thingied" if anyone else would like to use it to park their calipers near the machine.
http://www.thingiverse.com/thing:752346
