I have some vertical panel blinds for 36x52 (or shorter) windows. These all could be shortened by simply cutting the plastic panels to fit any window size. These were removed during some upgrades, and we no longer need them. I didnt realize until we stacked them up that they were different than each other - there are 3 solid and 2 ridged.
3 solid white ones:
Good working condition. They mount with brackets that screw into the window frame.
2 ridged style ones:
Consider this as one good one, one ok one. They both function except one of the sets has a single broken panel holder. I used a ziptie to just hold the panel shut. this would be fine for a window where they're usually shut.