Just wanted to note that Koval Distillery just opened a small retail store this week. It's at the distillery (5121 N. Ravenswood) and they sell all their liquors and some t-shirts. They mostly did it so they can sell at the distillery during tours and such, but they're planning on having it open for a few hours weekdays - 4 to 7 PM I believe. If you can't find any of their products at liquor stores they will most likely have what you're looking for.