Friction-fit vise soft jaws
thingiverse
Customizable soft jaws for a bench vise. The default values fit nicely on my 125mm grizzly bench vise. They stay in place without magnets. Once you've got the fit dialed in, it would probably be best to print with fairly heavy fill. Updated 2013-05-18: renamed parameters and added some comments and pictures to make customizing easier. Also adjusted the geometry to make previewing better.
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