Here’s something that I’ve never seen before… The Messograf Caliper / Pen is an ink pen with built in calipers. Nifty idea! I measure things all the time, so this would come in very handy for me. It has a 0.1mm metric and 1/16″ inch scale. The price is $27.90.
Measure stuff with your pen
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I am in *love*
I do have this pen… it is nice but writing with it is really bad.