This remix of the Itty Bitty Fidget adds a color swap to use it as an indicator.

Like the fidget it's based on, it uses less than 1.5m of filament.

https://youtu.be/1CqIXvbk_vw

The indicator is available in three versions:

Large magnets 6x3mm cylinder magnets Strongest and most reliable click.

Small magnets 3x3mm cylinder magnets Soft click with an optional middle setting.

No magnets No hardware required Depending on your printer's calibration and the filament you use, this will provide a click of variable stiffness.