Mine has the seal of the state of California on it, or rather a halfway decent Chinese version of it. I usually buy the keychains for my living quarters at tourist traps, and they always are related to location. When I lived in San Francisco I had a keychain from Fisherman's Wharf that said San Francisco California on it. I've had a number of Sacramento or California key fobs, because that's where I live.
The current fob is actually the second state seal one I've owned, the other one got worn and ultimately broke. Tourist trap key fobs tend not to last for very long. The one for my car was purchased at a car dealership and says Nissan Sentra on it (mine is a 2002). I tend to keep my car keys and house keys separate, a habit from when I lived downtown and would frequently go out on a bicycle or on foot. I live in the suburbs now so I no longer go out without being in a car, but I still keep my house and car keys separate.
I have a key for my house and the front gate of my parents' property where I live, a key for my parents' post office box (I no longer get mail there after my dad "lost" some of my mail, but my mom will on occasion ask me to pick up her mail), a key for my bathroom door (when we built the houses, my dad put the cheapest knob on the baths and closets that he could, and not only does it use a key but it can lock itself shut occasionally), and the key to my parents' house up in front. I had a key for a shed on my parents' property on there, but it's the only master key for that lock we've got, so I took it off and put it somewhere safe.