Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5251237.

Progress Clocks are a mechanic from the roleplaying game Blades in the Dark. Here is a video by Sly Flourish about this: https://www.youtube.com/watch?v=iVrGcXto5RM

Yes, the base idea is to draw a circle on an index card. But that's boring, right? So I designed this. If you need to be convinced, here are the features:

• durable and reusable
• with a single color switch you can easily flip segments to signify failure and success (like from red to green).
• it comes with a clip/case to keep things in place, so it's portable!
• it looks cool.

Seriously, though, if you want maximum versatility, print a base, 6 6ths-pieces with two colors, and a clip. That way, you have a portable version that works to represent clocks with 2, 3 and 6 steps natively, and, by leaving out 1 or two pieces, can also for for 4 and 5 steps.

And if you still want to use index cards that's fine, too.