Harry Potter fans should recognize the third amulet from the left!
Originally Moe's line was "Wow, for real?" Then I changed it to simply "For real?" But after I wrote his dialogue in the strip, I thought that sounded like he was wondering if they actually worked. So I had to white out his line and replace it with something that sounded a bit more skeptical.
Plus, the "Display Items Not For Sale" sign was a last-minute addition that I just thought would sound kind of funny.