Ohhh, I get sentimental about everything!
I could pick up a stone from the ground, and name it. I could become attached to the stone in less than thirty minutes, or so.
I am super-sensitive, which might have something to do with it, but I'm definitely sentimental about any object or thing.
I'm sentimental about TV shows I watched as a kid. I still think they are cool, now. Muppets, Barney the Dinosaur, etc.