Widowmaker,
I know horns don't count, but since they don't allow firearms -- STICK AND STRING!!!!!!!
I received an email with this story and pics:

The Thiokol Plant (where they make and install the solid rocket fuel
for the booster rockets on the shuttle) is located North of SLC and
south of Promontory Point. For those who do not remember their 7 grade
history Promontory Point is where the transcontinental railroads meet.
President Grant and the Golden Spike). Because Thiokol will not allow
firearms on the property. As you can see, their policy assures very
large antler growth. One of these bucks is well over 40" wide and a 6X7
that is in the 35" range.