Souvenirs... Maybe it's where I live (Clearwater, FL), but when I think of souvenirs, I think of one of those tacky, neon-lit shops that can be found in any big beach town in the US. Vintage mementos are just so much cooler. When I travel, I usually ignore the obvious tourist traps and look for something that's useful and beautiful to me. I would guess that a third of my Etsy shop listings feature items that were brought back to the US as a souvenirs. 
Here are a few of my current offerings- no bad t-shirts or bored sales clerks! Click on the captions if you're interested in more information.

"Roma Basilica de S Pietro"

"Cape Cod"

"Atlantic City, NJ"

"Florida"

"Innsbruck, Austria"

"Karlovy Vary"

"Florida"

"Lancashire, England"

One last "Florida" one!