We have our 3 winners! Before we announce who they are, I’ll take a moment to describe how they were chosen from all of the correct entries.
First, all correct notecards (176) were placed in a folder in alphabetical order by Barbara. I have not seen this list. Second, I used a random number generator at random.org to generate 3 completely random numbers. Third, I gave these numbers in order from 1st place to 3rd place to Barbara, and she used these numbers to determine the winners, based on their position on the list. The screenshot from random.org is shown here:

And here are the three winners:
1st place (#103): Moriko Inshan
2nd place (#53): Griete Rasmuson
3rd place (#12): Angela Ratelle
Congratulations! The shop owners have been given your names, so you should begin receiving your prizes soon.