I used to collect the Winnie the Pooh designer plush from the department store in Japan had just one to go Rabbit and they stopped carrying them...
small figurines, the plush inspired by the countries, a few pins, pens, shirts are usual items for me.
My DH has bought a nice blanket from Mexico, a hand carved chess set from a shop in Adventureland.
Other cool non-Disney things I've gotten from Japan a really nice tote style purse w/ intricate needlepoint like design on it, a necklace as well from there. I love the cloth wallets, etc in China. and I got a cloth bread basket from France (it's just like one my sister bought me in the real France)
We're also fan's of the Christmas store.
This year so far on the wish list of souvineers:
my DS(9): pressed penny book and pennies, any new Toy Story stuffed animal he doesn't have, something PoC inspired and something from China
my DD (9): a pin lanyard and pins, a shell braclet she saw a picture of here on the boards, polynesian themed things for her room and American Girl style Disney doll clothes, and a new charm for her Disney charm bracelet
my DD (5): a countries passport, an autograph book, the disney little pony stuff, anything Ariel or Princess, maybe start her Disney charm bracelet this year.
for my DD (18 mo.): hope to get her first haircut there in the MK Barber Shop and get first haircut ears, get 1st visit button (free)
me: WDW themed music CD's, cloth round zipper pouches from China, collectible glass mugs from Liberty Square in MK, sounvineer picture packages to split w/ DMom from our character meals, Christmas ornaments for us and kids
not sure DH has anything in his radar yet
I have to say generally we do good w/ our shoping but being on our every 3-years plan...we may buy a bit more than average. But I try to stick to wish lists and a general set amount of spending money. This trip I'm also designating a small carry on (that going will carry our 1-day essentials if DME delays our luggage) to fill up as we buy. Once full well we either need to stop or determine any last must buys....