Mouse Ruler (Mouse King!)
thingiverse
Designed for a nearby university lab to help measure the body and tail length of small mammals they trap. Split up into two pieces because it didn't fit in my printer (Prusa Mini). It should snap together pretty easily without sanding. The one in the picture was printed using PLA and it was sprayed on top and bottom with lacquer to help with warping from moisture. If using outdoors, printing with ABA or ASA may help longevity (not tested). You can fill the text with dirt or clay after printing and before sealing to make it easier to read.
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