Some of my most favorite souvenirs include my Disney Pins in my Pin Books (I have 2 full pin books, and a few lanyards of pins from my 3 college programs I collected on, as well as my 2005 family vacation), I LOVE looking at them, and they are fun to pick out to buy and trade with. I remember where I got every one of my pins. The Limited Edition ones are the coolest. I have quiet a large collection of Tangled, Lion King, Toy Story, & Mickey Pins as those are my favorite movies / characters.
Another souvenir I got that I love is my Star Wars Dooney and Bourke Cross Body from Star Wars Weekends- I use this bag every time I leave the house, it's not something that collects dust on a shelf- I feel like I definitely got my $200 worth out of it, it's been a year, and it's still my favorite bag that I have, I also have the smaller wristlet that goes with it and a larger Tote in a different Print, but I don't use those as much as my cross body.
I have a Star Wars Autograph Book from Star Wars Weekends that not only has Star Wars Disney Characters in it, but some of the celebrities that attended like Ashley Eckstein, James Arnold Taylor, Daniel Logan, etc. The fact that they have now cancelled SWW, this means a lot to me that I have it.