Viewport - Hygrometer replacement

42mm Viewport - A hygrometer replacement that's designed to break!============================================1. Concept / background--------------------------------------------We use orange or blue desiccant to show when it's getting too wet, and then we put it into closed desiccant containers. So we add a hygrometer.But... if we use a hygrometer, then what's the whole purpose of desiccant that changes color?!? And hygrometers run out of battery.What if we could simply SEE the desiccant that's inside the container? That's exactly what this little piece does.2. Marketing--------------------------------------------A bio-optical low-energy hygrometer replacement! Yeah!My apologies for the blood red color of the prints... It was time to finish my last roll of nearly ten year old Dremel firemen-red PLA.3. Needed--------------------------------------------- Desiccant containers (or a printer plus filament, I like to suggest white)- 30 mm acryl discs (you can find them in