If you're going to sell in person.......
Meet interested buyers @ the nearest coffee/pizza shop.
If someone approached me randomly on the street, I would be wary of buying little neon colored shrimp. (The shrimp in the 1st photo looked like they were dipped in food coloring.) $10 I would definitely buy it, just prefer to have some notice ahead of time so I had a appropriate tank setup for them.
See if you can team up with another member that's close by. There's got to be a Philadelphia fish keeping club with some members who are experienced shippers.
Everyone in Philly can't be eating cheesesteaks, scrapple & pretzels all day long.
Too bad you're 7 hours drive from me, otherwise I would help you set something up in exchange for a sampler pack of your armored critters.
Other than that, gorgeous fish/shrimp room!!!