(Scandinavia is not
that remote, you know...)
I'd be happy to help you out with any information and experience I may have with any potential Swedish purchases.
Caraway, dill and fennel are traditional flavorings.
Looking at your list:
"Fläder" (or elderberry blossom) makes for a citrusy, flowery and slightly sweet shot. "Pors" (
Bog myrtle) is also lighter, flowery and somewhat sweet. "Skåne" has the exact same flavoring as O.P. Andersson but only half as much. The list doesn't include my favorite bitter flavorings. I've brought bottles of both "
Piratens besk" (scroll down one picture) and "Bäska droppar" to Chicago. Both flavored with wild Swedish
wormwood.
You can also make your own, Greasy Spoon! I normally use a slightly weaker vodka (37-38% is ideal) as you can enjoy and extra shot or two and the lower alcohol doesn't deaden the flavors as much. Pour in a few tablespoons of caraway, fennel (heck, add a bit of lemon peel and piece of cinnamon stick, too!) and let the bottle sit at room temperature for a week or so. If it ends up too strong, simply dilute with a little more vodka. Adding a cube of sugar (regardless of the flavorings) can smooth things out a little, too. I've made my own St. John's wort snaps as well as wormwood (more than a day with one sprig of wormwood makes it unbearably bitter, though).
A few St. John's wort shots:



(The yellow flowers have a red coloring inside that leeches out and makes for a beautiful, whiskey-colored snaps after a week or so.)