I’m totally new to DIY electronics but I want to create using switches, a slider with stepping , or a rotary knob with stepping ( is encoder the right term?) to help me remember checklists. What I mean is I want a poor man’s alternative to this https://www.missionarybushpilot.com/buddycheck

I need it to be a physical switch or slider with noticeable steps ( so I can quickly get feedback when I switch to the next step) or large knob of at least 5cm wide, and it must be in steps from 6 up to a maximum of 10. Also it will be unpowered so no need for lights and wiring, I just need the physics switch(es) place to put my labels on the custom housing, and that’s it.

It also needs to be a small enough contraption that I can make a housing for it and to be strapped to my upper leg without getting in my way too Much, so not bigger than an A5 paper size.

Here’s roughly 2 variants I can think of https://ibb.co/j8yRrHY

Second, I found a rotary encoder

Just found this amazing item on https://a.aliexpress.com/_EzxCuJZ but it has too many steps, the challenge is most of these appear to be without the knobs and unsure what’s the standard for that so I can get the knob separate. Third I've found this interesting panel with just the right amount of switches

Just found this amazing item on AliExpress. Check it out! CHF8.43 5％ Off | 3/6 Gang Toggle Switch Panel On/Off Rocker Toggle Switch with 10A Fuse Racing Cars RV Camper Marine Boat Yacht 12V/24V Switches https://a.aliexpress.com/_EH8wIXp

But I’m open to advice or other types of physical switches that can do the job and I didn’t consider.

Thank you in advance.