Since Skoda Fabia doesn't come with any small closed compartment in which you can store some parkmeter money for example, I decided to quickly model a container with lid held by magnets, that fits into car cup holder space.
Attached .stl file diameters are 63mm (bottom) 68mm (top), you can see how it fits in the picture.
There are cutouts designed to fit four 2x2 magnet on both parts to hold them together, although I guess you can also try using some kind of pegs to hold it together.
To be fair you can even go ahead and not bother with any of that stuff (the top cover has a little rim that should prevent sliding off) but don't be suprised when the top comes off when you hit a bump or a hole in the road ;)
If you can, I honestly recommend using magnets :)
----- Just a small tip when slicing the model. Please make sure that you position your seams so that it doesn't interfere with magnet holes (simple fix is to set seam position to rear and order the seams by rotating the model). The worst case scenario if you don't or can't do that is you could end up with little gaps where the seam intersects with the magnet hole.
I also included somewhat parametrized scad files if you wish to tinker with it a little bit or scale it for you needs (magnet hole count, magnet hole size, height, diameters etc.) :)
The author marked this model as their own original creation.