In Frontierland, right next to the shooting gallery, there's a store that sells little glycerin soaps in the shape of a Mickey head. They're only $1 or $1.50 each, so they're great for officemates, etc. That store has a lot of cute stuff that I didn't see anywhere else.
I remember in Animal Kingdom (though I'm sure they're other places) one of the stores sells Disney post it notes. They would be good for officemates, too.
For friends...well, depends on how much you want to spend and what they like, but there are a lot of really cute and different things available. Pins are fun.
lol I just asked my dh's advice on this and he said, "How much do they like their friends?"