To add to my little collection and a big thanks to Rainer, who helped me find these latest items, here is a fob.
It has a smaller version of the Rovaniemi-Petsamo-Salla reindeer pulling cannon pin.. I have a pin that is slightly larger in diameter than this one.
It also has two post war pins, one called Lapin Jalleenrakentaja, or Lappland rebuilding, and one called Opas Guide with the postwar Finland borders.
These travel pins were available before the war, during the war and after the war, so I do not have a war cut off point for collecting these, just a wow point
Here is along with a picture of the two sizes of the first pin (although it is hard to tell on these shots).