Someone raised a point at DS that people were leaving their masks on table, desk, etc and pointed the non sens of using those for protection and the "risk of contamination".... I figured out that I was already using one solution (maybe) to the problem while using my wife "purse hook" (bag hanger) on my desk to hang my mask by the string. Avoiding leaving it on my desk. I was thinking of a clean design, easy to print. I have not much time to do more at this time, and not really skilled in designing mechanism but I guess it could be easy to design a quick-print-in-place foldable hook, to carry inside a pocket.

Edit, i made some improvement to make this hook easier to use (less large) and more stable (by controling center of mass and inertia). I used variable density by playing on the infill % and a enclosed pocket with 7% support.

Version A : Draft, unstable

Version B : Stable but not convenient (too long)

Version C : More stable and easier to use as the hook is shorter.

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