I don't see how they can take 10 hours each to make. Most Rustoleum paints will go on glass without a problem and dry to the touch in 30 minutes and be safe to handle in an hour or two. The only thing I can see taking some time are the box and fins. Although if you have access to a laser cutter, you can cut them out of plexi fairly easily. I'm not knocking the idea, it's freaking awesome, I'm just questioning the amount of difficulty that theyre suggesting. I might brew an IPA and bottle a few like this.