Where can I find Rocket in Laterns?

Rocket can also be found in these cities:

Altach Andelsbuch Bizau Bludenz Brand bei Bludenz Damüls Dornbirn Egg Feldkirch Göfis Götzis Hohenems Innerbraz Koblach Lustenau Mellau Mäder Nenzing Nüziders Schlins Schnepfau Schnifis Schwarzenberg Silbertal Sulz Thüringen Vandans Weiler Übersaxen

You can also find this in Laterns:

Spreadable Sausage Spinach Lemon Aroma Jam Vinegar Beef Cocoa Raisin Roll Canned Sausage Oil