Caduceus Gifts
A lot of Really Neat but often underappreciated jobs have to do with the medical professions: not that we're sorry to see the nurses, the dentists, the veterinarians or the EMTs when we need them - because when we need them, we really need them - but after the crisis is over we tend to... not forget them, really, but to put them out of our minds.

The caduceus is the ancient symbol of medicine, derived in one version from the staff of Aesculapius, and in another, from the staff of Hermes....

The Pyrate Shoppe
What job could possibly be more Really Neat than "Pirate"?

Okay, you think I'm going overboard here. Either you're not willing to consider piracy a profession - in which, dear reader, you would surely be in error - or you're one of those people who thinks that ninjas are cooler than pirates. I'm just embarrassed for you, if that's the case.
Which reminds me of the (probably fictional) French pirate whose name translates to "Half-Buttocks", which is another tale, told of course by men who aaare not dead.

The Curmudgeony Librarian
You take them for granted; you think they're wallflowers. But one day they tell you "Don't Make Me Shush Your Ass", and the world changes.

The Curmudgeony Librarian Superstore is owned by, run by, and painstakingly sorted by, a librarian.
The core of the designs on these tshirts, coffee mugs, stickers, tote bags, gewgaws and gimcracks are based on a lifetime spent in Library Science. They're obviously meant for librarians to wear, but there's nothing to stop anyone else, of course - and there are other sections in the store for general circulation funny tshirts and other goods.
 

Shovel Bums
Who among us didn't go through a phase when we wanted to grow up and spend our lives, like the song says, "Digging up history and living in tents?"

Of course, we probably thought that would include digging up dinosaurs (paleontology), or discovering ancient interplanetary visitors (spielbergology), or anyway, finding some buried treasure, diabolical mummies, or, (come on!) maybe at the very least, dangerous secret societies.