Prank Ruler

this ruler at first glance looks perfectly normal. (if you ignore the color scheme) but its actually slightly off. with every inch being to short. so unless you have a very good idea of how long a foot is, which most people don't, you won't be able to tell. just don't give it to a carpenter. you will have to print it diagonal to fit on a 256 mm build plate. and to make it two colors pause the print at layer 33.