We saw a couple people with the ears that I think you are talking about. The ones we saw were brand new according to the CM we spoe to. You are able to add all sorts of jewels and such, sort of like a 'bedazzled' set of ears. Hope that helps.
Yup. They were available in Toontown this past week. They're a bit pricey. From what I remember the cap was around $5, each ear was $3.50-ish, decorations (patches, etc.) were $3.25 each, I can see how one could really go overboard with them.