key holder "tactical" style
thingiverse
There are a bunch of keyholders here, but most of them are swiss army-style and quite bulky. I tried to design my own. It holds 5-6 keys. And I tried to do a "tactical" style, because why not :) You just need a 20mm m3 screw and nut. there are also optional 0.5mm shims to compensate for gaps and an optional axle sleeve to prevent slack.
Download Model from thingiverse
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