Just poured myself a shot of "Berliner Luft" (eng: Berlin Air). It's a pepermint liquor that was originally produced in the GDR (East Germany) but it's still around today (and quite famous!).
Honestly, pepermint liquor is usually dreadful stuff but this one actually tastes quite nice. It's very smooth, the taste is a bit like liquid toothpaste or something... I promise, it's better than that sounds!
https://www.berliner-luft.berlin/assets/images/produkte/Berliner_Luft_070_1806.jpg[/img]
EDIT: I'm wondering: do other countries actually have pepermint liquor, or is this mostly a German thing?