I think the fairphone project has a very strong marketing/pr team, they know all the tricks. I’m pretty sure they will come up with something if we don’t find a perfect solution for this
But if you plan something like this I would try to only focus on the tantalum, tin, tungsten and gold (3T&G) P-table “logos” and the fairphone logo (symbols on the back, little fairphone logo on the front-left “pocket area”).
This will create more questions. I think there are even a “fonts” for the chem symbols out if needed. Don’t forget that the fairphone project has cooperative design&branding already going on for a loong time. So they can tell you the fonts, vibe, and colors needed.
(Update: But I’m not sure if after Breaking Bad one can still do this kind of design … ;))