I don't know about Disneyworld, but
Disneyland has where you can get a set of...I think six? Anyway, it's a set for all the different holidays and it comes out to be a little cheaper than if you were to buy individuals (includes Halloween, Easter, St. Patricks Day, 4th of July -- different from the one I describe below, and I'm forgetting what else). The ones at Disneyland individually are $5, but some of them are sold at the
Disney Store for only $3.50.
There are so many different ones I've seen at Disneyland. World of Disney (their big Downtown Disney store) has a whole little section devoted to them. Some that have been sold lately have been black Mickey head with glittery gold ears, a couple different pirate ones, Jack Skellington, a really pretty Fourth of July one that's got red, white, and silver glitter (that one isn't being sold anymore I don't think, since 7/4 has passed), glittery gold mortarboard on mouse ears for graduation, sorcerer Mickey ears, princess Minnie ears, the castle...and it goes on and on. They change very frequently, so you have to keep your eye on it.
